Most fall flowering plants are

Most fall flowering plants areA) long-day plantsB) short-day plantsC) short-night plantsD) day-neutral plantsAnswer: B) short-day pla...

Which of the following is an example of how photoperiodism affects plant ecosystems?

Which of the following is an example of how photoperiodism affects plant ecosystems?A) Spinach, a long-day plant, flowers in the tropics because the days...

Which of the following is an example of a chemical defense mechanism in plants?

Which of the following is an example of a chemical defense mechanism in plants?A) A plant tastes bitter when a herbivore attempts to eat itB) The leaves...

Which of the following types of plants would be most dependent on thigmotropism?

Which of the following types of plants would be most dependent on thigmotropism?A) aak treeB) kudzu vineC) sunflowerD) grassAnswer: B) kudzu v...

Which of the following is a plant growth response to touch?

Which of the following is a plant growth response to touch?A) phototropismB) gravitropismC) thigmotropismD) hydrotropismAnswer: C) thigmotrop...

Short-day plants

Short-day plantsA) will flower if a period of continuous darkness was longer than a critical period.B) flower in days where the day is short or the day...

To qualify as a circadian rhythm, the activity must

To qualify as a circadian rhythm, the activity mustA) occur in the morning and the eveningB) occur only in the presence of external stimuliC) be able...

A researcher discovers that cocklebur will not flower if a required dark long period is interrupted by a brief flash of white light. Which of the following conclusions can be made?

A researcher discovers that cocklebur will not flower if a required dark long period is interrupted by a brief flash of white light. Which of the following...

Which of the following reduces water loss from the leaves of a plant?

Which of the following reduces water loss from the leaves of a plant?A) increased number of stomatesB) decreased thickness of the leaf cuticleC) sunken...

Plants in a high-humidity environment will

Plants in a high-humidity environment willA) close their stomata due to the low water potential outside the leafB) open their stomata temporarily then...

Phytoremediation is effective because

Phytoremediation is effective becauseA) it is much quicker than conventional cleanup of sitesB) it can be effective at extremely deep sites by plants...

Plants do not acquire nutrients by which of the following mechanisms?

Plants do not acquire nutrients by which of the following mechanisms?A) engaging in a mutualistic relationship with fungiB) sending out rootlike projections...

Sucrose is moved into the phloem by

Sucrose is moved into the phloem byA) passive transportB) active transportC) phagocytosisD) diffusionAnswer: B) active transp...

The primary function of companion cells is to

The primary function of companion cells is toA) provide proteins to sieve-tube membersB) transport organic nutrients to all parts of the plantC) allow...

The cells of a wilted plant have a

The cells of a wilted plant have aA) higher water potential inside the cellB) higher concentration of solutes outside of the cellC) lower osmotic potential...

The presence of a vascular transport system

The presence of a vascular transport systemA) does not allow plants to increase in heightB) facilitates the dispersal of sporesC) makes it more difficult...

Which of the following stimuli will cause the stomata to remain open?

Which of the following stimuli will cause the stomata to remain open?A) the secretion of abscisic acidB) Decrease in turgor pressure due to the exit of...

The following question refers to the monocot stem. Which of the following structures is the primary transport tissue for water in tracheophytes?

The following question refers to the monocot stem. Which of the following structures is the primary transport tissue for water in tracheophytes?A) EpidermisB)...

This layer of tissue consists of only an exterior, single layer of cells.

This layer of tissue consists of only an exterior, single layer of cells.A) ParenchymaB) MeristemC) EpidermisD) SchlerenchymaAnswer: C) Epider...

This type of tissue contains nonliving cells without pits that function in support of the plant.

This type of tissue contains nonliving cells without pits that function in support of the plant.A) ParenchymaB) MeristemC) EpidermisD) SchlerenchymaAnswer: D)...

This type of tissue has root hair extensions to increase surface area.

This type of tissue has root hair extensions to increase surface area.A) ParenchymaB) MeristemC) EpidermisD) XylemAnswer: C) Epider...

This type of tissue transports water and minerals from the roots to the leaves.

This type of tissue transports water and minerals from the roots to the leaves.A) ParenchymaB) MeristemC) EpidermisD) XylemAnswer: D) Xy...

Which of the following plants have stems that are adapted for support and climbing?

Which of the following plants have stems that are adapted for support and climbing?A) StrawberriesB) PotatoesC) Sugar caneD) GrapesAnswer: D) Gr...

Most photosynthesis occurs in the

Most photosynthesis occurs in theA) mesophyllB) endodermisC) cork cambiumD) tracheidsAnswer: A) mesoph...

A plant that grows in the shade will tend to have

A plant that grows in the shade will tend to haveA) spiny leavesB) broad, wide leavesC) fleshy leavesD) sunken stomataAnswer: B) broad, wide lea...

Which of the following is true about the bark of a tree?

Which of the following is true about the bark of a tree?A) Secondary phloem is not produced every year.B) Phloem builds up from season to season.C) Girdling...

A climbing ivy that is not rooted in the ground would have which of the following types of root(s)?

A climbing ivy that is not rooted in the ground would have which of the following types of root(s)?A) TaprootB) Fibrous rootsC) Prop rootD) Aerial rootsAnswer: D)...

In double fertilization,

In double fertilization,A) the microsporangium divides by meiosisB) the pollen sacs produce microsporesC) meiosis produces four megasporesD) one sperm...

Flowers that bloom at night are usually

Flowers that bloom at night are usuallyA) large and showyB) colorfulC) aromaticD) light-coloredAnswer: D) light-colo...

Ginkgoes are dioecious, which means that they

Ginkgoes are dioecious, which means that theyA) produce microspores and megasporesB) have male and female reproductive structuresC) have separate trees...

Microphylls differ from megaphylls in that they

Microphylls differ from megaphylls in that theyA) are more broadB) have a single strand of vascular tissueC) are found in fernsD) can gather more sunlightAnswer: B)...

Vascular plants differ from bryophytes in which of the following ways?

Vascular plants differ from bryophytes in which of the following ways?A) Alternation of generationsB) Covered by a cuticleC) Possess stomataD) Possess...

Organisms in this group develop fruit from an ovary.

Organisms in this group develop fruit from an ovary.A) BryophytesB) CharophytesC) GymnospermsD) AngiospermsAnswer: D) Angiospe...

Organisms in this group utilize double fertilization.

Organisms in this group utilize double fertilization.A) BryophytesB) CharophytesC) GymnospermsD) AngiospermsAnswer: D) Angiospe...

This group uses a sporophyte generation which bears cones that produce male gametophytes and seeds.

This group uses a sporophyte generation which bears cones that produce male gametophytes and seeds.A) BryophytesB) CharophytesC) GymnospermsD) AngiospermsAnswer: C)...

This group contains the low-lying nonvascular plants.

This group contains the low-lying nonvascular plants.A) BryophytesB) CharophytesC) GymnospermsD) AngiospermsAnswer: A) Bryophy...

Flowering plants and gymnosperms are divided by

Flowering plants and gymnosperms are divided byA) the type of fruitB) mode of embryo protectionC) apical growthD) the type of vascular tissueAnswer: B)...

Fungi produce spores

Fungi produce sporesA) during asexual reproduction onlyB) during sexual reproduction onlyC) during asexual and sexual reproductionD) because they are...

These organisms often parasitize algae.

These organisms often parasitize algae.A) ArchaeaB) BacteriaC) Green algaeD) LichenAnswer: D) Lic...

The organisms reproduce asexually by mitosis.

The organisms reproduce asexually by mitosis.A) ArchaeaB) BacteriaC) Green algaeD) LichenAnswer: C) Green al...

These organisms reproduce asexually by releasing hyphae.

These organisms reproduce asexually by releasing hyphae.A) ArchaeaB) BacteriaC) Green algaeD) LichenAnswer: D) Lic...

The relationship between fungal and algal cells (lichen) is

The relationship between fungal and algal cells (lichen) isA) mutualistic, in which the fungus receives nutrients from the algal cells, and the algal...

What adaptation ensures that terrestrial fungal offspring will proliferate?

What adaptation ensures that terrestrial fungal offspring will proliferate?A) Fungi reproduce only asexually.B) Fungi reproduce asexually through the...

The infection caused by ringworm is due to

The infection caused by ringworm is due toA) the secretion of toxins that suppress the immune system.B) the production of lesions that produce penicillin.C)...

Penicillin is produced by a

Penicillin is produced by aA) bacteriaB) fungusC) yeastD) lichenAnswer: B) fun...

Which of the following is a primary difference between plants and fungi?

Which of the following is a primary difference between plants and fungi?A) Fungal cells lack chloroplastsB) Plant cell walls are composed of peptidoglycanC)...

Conjugation in paramecium is an extraordinary process, as

Conjugation in paramecium is an extraordinary process, asA) genetic recombination occurs in the two cells that begin the sexual processB) it is a reproductive...

Psuedopodia involve which of the following proteins?

Psuedopodia involve which of the following proteins?A) TubulinB) PepsinC) ActinD) KeratinAnswer: C) Ac...

Which of the following accessory pigments is found in the golden-brown algae?

Which of the following accessory pigments is found in the golden-brown algae?A) CarotenoidB) Chlorophyll aC) PhycoerythrinD) Chlorophyll bAnswer: A)...

In alternation of generations, the sporophyte produces

In alternation of generations, the sporophyte producesA) haploid spores by meiosisB) haploid gametesC) diploid gametophytes by mitosisD) diploid zygotesAnswer: C)...

Contractile vacuoles

Contractile vacuolesA) form psuedopodsB) discharge excess waterC) are essential in reproductionD) contain carotenoid pigmentsAnswer: B) discharge...

Dinoflagellates reproduce

Dinoflagellates reproduceA) asexually by mitosis and sexually by meiosisB) through binary fissionC) by sexual reproduction through conjugationD) with...

Which of the following is a multicellular seaweed with phycoerythrin, phycocyanin, and chlorophyll?

Which of the following is a multicellular seaweed with phycoerythrin, phycocyanin, and chlorophyll?A) Brown algaeB) Water moldsC) Red algaeD) AmoeboidsAnswer: C)...

Which of the following is a colonial, multicellular organism with special carotenoid pigments?

Which of the following is a colonial, multicellular organism with special carotenoid pigments?A) Brown algaeB) Water moldsC) Red algaeD) AmoeboidsAnswer: A)...

Which of the following is a unicellular organism with unique flagella, but no psuedopodia?

Which of the following is a unicellular organism with unique flagella, but no psuedopodia?A) Brown algaeB) Water moldsC) Red algaeD) EuglenoidsAnswer: B)...

Protists are NOT

Protists are NOTA) unicellularB) colonialC) filamentousD) prokaryoticAnswer: D) prokaryo...

Cells prefer to use glucose over other energy sources. Therefore, in prokaryotes,

Cells prefer to use glucose over other energy sources. Therefore, in prokaryotes,A) high levels of glucose will prevent expression from other operons...

Under what conditions are repressible products made in prokaryotes?

Under what conditions are repressible products made in prokaryotes?A) when the substrate is in the environment and needs to be metabolized.B) when a signal...

Which of the following does not clearly describe the structure or function of micro-RNA?

Which of the following does not clearly describe the structure or function of micro-RNA?A) These molecules are nonprotein coding.B) They are able to inhibit...

Which type of mutation is most likely to be the least deleterious?

Which type of mutation is most likely to be the least deleterious?A) frameshiftB) substitution in the first baseC) deletionD) pointAnswer: D) po...

Which of the following types of control determine which structural genes are transcribed?

Which of the following types of control determine which structural genes are transcribed?A) transcriptionalB) posttranscriptionalC) translationalD) posttranslationalAnswer: A)...

Which of the following is a post transcriptional modification in eukaryotes?

Which of the following is a post transcriptional modification in eukaryotes?A) adding extra nucleotides to the DNA.B) the removal of introns from the...

When a trp operon is in the "off" condition,

When a trp operon is in the "off" condition,A) the repressor will code for an operator and change shape.B) tryptophan will bind to the repressor.C) the...

Which of the following is true about prokaryotic gene regulation?

Which of the following is true about prokaryotic gene regulation?A) A regulator gene codes for a repressor protein that controls the operon.B) An operator...

Eukaryotic protein synthesis differs from that of prokaryotes because

Eukaryotic protein synthesis differs from that of prokaryotes becauseA) transcription and translation occur simultaneously in eukaryotes.B) ribosomal...

Barr bodies would be observable in all but which of the following conditions?

Barr bodies would be observable in all but which of the following conditions?A) XXYB) XXXYC) XXYYD) XYYAnswer: D) ...

Which of the following terms best describes the genotype Bb?

Which of the following terms best describes the genotype Bb?A) homozygous dominantB) heterozygousC) homozygous recessiveD) heterozygous dominantAnswer: B)...

Paula and Bernie are both carriers of Huntington's disease. What are the chances that atleast two of their three children will inherit the disease?

Paula and Bernie are both carriers of Huntington's disease. What are the chances that atleast two of their three children will inherit the disease?A)...

In peas, the tall allele is dominant over the short allele. Which of the following statements is true about the cross between a homozygous dominant tall plant and a short plant, and the F1 offspring that is allowed to self-fertilize?

In peas, the tall allele is dominant over the short allele. Which of the following statements is true about the cross between a homozygous dominant tall...

A man with blood type A and a woman with blood type B have a child. If this child has type O blood, which of the following statements must be true?

A man with blood type A and a woman with blood type B have a child. If this child has type O blood, which of the following statements must be true?A)...

Paula is blood type A- and has a child who is B+; Paula requests that Bernie undergo a paternity test as a possible father of the child. If Bernie is the father, what are his possible blood types?

Paula is blood type A- and has a child who is B+; Paula requests that Bernie undergo a paternity test as a possible father of the child. If Bernie is...

Which of the following statements provides the best evidence that environment can play a role in determining the phenotype of an organism?

Which of the following statements provides the best evidence that environment can play a role in determining the phenotype of an organism?A) A primrose...

Cystic fibrosis is an inherited autosomal recessive disease affecting the cells that produce saliva, sweat, digestive juices, and mucus. Evidence to support this particular mode of inheritance includes the fact that

Cystic fibrosis is an inherited autosomal recessive disease affecting the cells that produce saliva, sweat, digestive juices, and mucus. Evidence to support...

Skin color is polygenic, dependent upon many genes. Dominant alleles produce darker-pigmented skin, whereas recessive alleles produce lighter-colored skin. What is the probability that a fair skinned individual (aabbccDdEeff) and a relatively dark skinned individual (AABbCCDdeeFF) will have a child who is also relatively dark skinned with a specific genotype of (AABBccDdEeFf)?

Skin color is polygenic, dependent upon many genes. Dominant alleles produce darker-pigmented skin, whereas recessive alleles produce lighter-colored...

A family has four children, whose blood types are A, B, AB, and O. What are the possible blood types of the parents?

A family has four children, whose blood types are A, B, AB, and O. What are the possible blood types of the parents?A) A and OB) O and BC) B and ABD)...

Phenylketonuria (PKU) is an autosomal recessive disorder where afflicted individuals are incapable of metabolizing the amino acid phenylalanine, and it accumulates in nerve cells of the brain. What is the probability that a man and a woman that are both phenotypically normal, but are carriers, will have a child with PKU?

Phenylketonuria (PKU) is an autosomal recessive disorder where afflicted individuals are incapable of metabolizing the amino acid phenylalanine, and it...

Which of the following provides a mechanism for genetic variation during meiosis?

Which of the following provides a mechanism for genetic variation during meiosis?A) The unique separation of sister chromatids during the first meiotic...

Which of the following events occurs earliest in meiosis?

Which of the following events occurs earliest in meiosis?A) Crossing over occurs between homologous chromosomes.B) A tetrad or synaptonemal complex is...

In meiosis, which of the following types of cells divide?

In meiosis, which of the following types of cells divide?A) skin cellsB) egg cellsC) muscle cellsD) nerve cellsAnswer: B) egg ce...

Which of the following terms is appropriate to meiosis but not mitosis?

Which of the following terms is appropriate to meiosis but not mitosis?A) crossing overB) chromatidsC) centromereD) kinetochoreAnswer: A) crossing...

During pregnancy, a cell undergoes what appears to be a normal mitotic nuclear division. However, two daughter cells with 2n-1 and 2n+1 complement of chromosomes are produced, causing a population of cells to be abnormal. Which of the following events is most likely responsible for this disorder?

During pregnancy, a cell undergoes what appears to be a normal mitotic nuclear division. However, two daughter cells with 2n-1 and 2n+1 complement of...

Aneuploidy, defined as an abnormal number of chromosomes, is the most common chromosomal abnormality. Which of the following events will result in Down Syndrome, an example of a disorder caused by the inheritance of an extra chromosome 21?

Aneuploidy, defined as an abnormal number of chromosomes, is the most common chromosomal abnormality. Which of the following events will result in Down...

Sexually reproducing organisms

Sexually reproducing organismsA) depend on mutations to generate variation.B) produce great numbers of offspring within a limited amount of time.C) depend...

Meiosis reduces the number of chromosomes. However, this may occur at different points in the life cycles of animals, plants, and fungi. Which of the following statements is not an accurate description of these life cycles?

Meiosis reduces the number of chromosomes. However, this may occur at different points in the life cycles of animals, plants, and fungi. Which of the...

Mitosis and meiosis are similar in that

Mitosis and meiosis are similar in thatA) the both produce haploid daughter cells.B) sister chromatids move towards the poles in both.C) homologous chromosomes...

Genetic recombination occurs due to

Genetic recombination occurs due toA) crossing over between homologous chromosomes.B) proper alignment of paternal chromosomes and maternal chromosomes...

Fluctuations in the amount of cell-cycle control molecules affect the rate of the cell cycle. Which of the following would slow the cell cycle?

Fluctuations in the amount of cell-cycle control molecules affect the rate of the cell cycle. Which of the following would slow the cell cycle?A) Kinases...

Which of the following is true regarding mitosis and binary fission?

Which of the following is true regarding mitosis and binary fission?A) The duplicated DNA content of the reproducing parental cell is separated into two...

Which of the following would be observed in healthy cells, but not in cancerous cells?

Which of the following would be observed in healthy cells, but not in cancerous cells?A) a decrease in the length of the cell cycleB) density-dependent...

Which of the following best describes the daughter cells that are produced in mitosis?

Which of the following best describes the daughter cells that are produced in mitosis?A) haploidB) gametesC) somaticD) homologousAnswer: C) soma...

A major difference during cell division between plants and animals is

A major difference during cell division between plants and animals isA) the production of a cell plate in animals and a cleavage furrow in plants.B) centriole...

After the newly duplicated chromosomes have found their sisters,

After the newly duplicated chromosomes have found their sisters,A) the nucleolus disappears.B) spindle formation is complete.C) the centromeres divide.D)...

Which of the following are joined by a centromere and present after interphase?

Which of the following are joined by a centromere and present after interphase?A) sister chromatidsB) homologous chromosomesC) kinetochoresD) cell platesAnswer: A)...

Spindle fibers bind to this small, structural region of disc-shaped proteins as an anchor point.

Spindle fibers bind to this small, structural region of disc-shaped proteins as an anchor point.A) sister chromatidsB) homologous chromosomeC) kinetochoreD)...

In an experiment, four sealed Erlenmeyer flasks are linked. A tube open to air is inserted into the water in flask D. Another tube connects the air in flask D to the air in flask C. A mouse is placed in flask C. A tube connects the air in flask C to the water in flask B. Another tube connects the air in flask B to the water in flask A. Another tube in flask A connects the air in flask A to an air pump. The water in flasks A, B, and D contain an indicator that will turn pink in the presence of carbon dioxide. If the mouse is carrying out cellular respiration, which of the following events will occur?

In an experiment, four sealed Erlenmeyer flasks are linked. A tube open to air is inserted into the water in flask D. Another tube connects the air in...

After you are finished running, you will most likely breath heavily. Which of the following molecules is your body trying to replace by doing this?

After you are finished running, you will most likely breath heavily. Which of the following molecules is your body trying to replace by doing this?A)...

You decide to go on a run/walk. After about 30 minutes, your body is most likely burning which of the following biomolecules as an energy source?

You decide to go on a run/walk. After about 30 minutes, your body is most likely burning which of the following biomolecules as an energy source?A) proteinsB)...

Which of the following statements is true regarding cellular respiration?

Which of the following statements is true regarding cellular respiration?A) Anaerobic respiration requires oxygen in order to generate ATP.B) The citric...

Which of the following events occurs first during chemiosmosis?

Which of the following events occurs first during chemiosmosis?A) integral proteins translocate H+ ions across the membrane, creating a pH gradient.B)...

You would expect to find the smallest number of mitochondria in which of the following cells?

You would expect to find the smallest number of mitochondria in which of the following cells?A) nerve cellsB) fat-storage cellsC) liver cellsD) cardiac...

Which of the following molecules is most commonly used during cellular respiration?

Which of the following molecules is most commonly used during cellular respiration?A) triglycerideB) DNAC) cholesterolD) glucoseAnswer: D) gluc...

During respiration, the greatest number of ATP molecules are produced during

During respiration, the greatest number of ATP molecules are produced duringA) glycolysis.B) fermentation.C) substrate-level phosphorylation.D) electron...

Trematol is a poison that inhibits the breakdown of lactic acid. How could strenuous exercise produce effects that could be confused with trematol poisoning?

Trematol is a poison that inhibits the breakdown of lactic acid. How could strenuous exercise produce effects that could be confused with trematol poisoning?A)...

Glycolysis can be described as a process that

Glycolysis can be described as a process thatA) is aerobic and produces 2 ATP per glucose moleculeB) converts glucose to pyruvateC) yields 34 ATP molecules...

At constant temperature,

At constant temperature,A) the rate of photosynthesis will vary with light intensity.B) the higher the irradiance, the higher the rate of photosynthesis.C)...

The leaves of a plant appear to be reddish. Which of the following wavelengths of light are likely being absorbed by the plant?

The leaves of a plant appear to be reddish. Which of the following wavelengths of light are likely being absorbed by the plant?A) greenB) redC) orangeD)...

In the fall, the leaves of many trees change from green to red or yellow. Which of the following statements explains this observation?

In the fall, the leaves of many trees change from green to red or yellow. Which of the following statements explains this observation?A) Leaves produce...

During the light dependent reactions,

During the light dependent reactions,A) carbon dioxide is fixed into sugar.B) the hydrolysis of water supplies electrons to photosystem II.C) ATP is broken...

Oxygen is produced when

Oxygen is produced whenA) electrons are accepted by water at the end of photosystem II.B) water is split at the initiation of photosystem II.C) protons...

RuBP carboxylase (Rubisco)

RuBP carboxylase (Rubisco)A) captures CO2 from the atmosphere and converts it to two 3-carbon sugars.B) transports H+ across the chloroplast membrane...

Evidence that crabgrass, corn, and sugar cane (C4 plants) are adapted to higher temperatures would be

Evidence that crabgrass, corn, and sugar cane (C4 plants) are adapted to higher temperatures would beA) CO2 is obtained during the day and incorporated...

The light dependent reactions of photosynthesis

The light dependent reactions of photosynthesisA) occur in the stroma of the chloroplasts.B) occur when hydrogen and carbon dioxide react to form a carbohydrate.C)...

Which enzyme is found in the small intestine?

Which enzyme is found in the small intestine?A) trypsinB) peptinAnswer: A) tryp...

Increasing substrate concentration will

Increasing substrate concentration willA) result in an increased rate of reaction until there is no substrate left.B) not affect the rate of the reaction.C)...

Which of the following statements is true regarding enzymatic reactions?

Which of the following statements is true regarding enzymatic reactions?A) Endergonic reactions can be accelerated by coupling them to an exergonic reaction.B)...

The reduction of carbon dioxide to a carbohydrate

The reduction of carbon dioxide to a carbohydrateA) utilizes energy captured in photosynthesis.B) occurs in the mitochondria.C) is an exergonic reaction.D)...

Which of the following molecules carries electrons to the thylakoid membrane in photosynthesis?

Which of the following molecules carries electrons to the thylakoid membrane in photosynthesis?A) ATPB) NAD+C) NADP+D) FADAnswer: C) NA...

Which of the following is a product of hydrolysis of ATP?

Which of the following is a product of hydrolysis of ATP?A) ATPB) NAD+C)NADP+D) ADPAnswer: D) ...

Which of the following molecules contains adenine, ribose, and three phosphates?

Which of the following molecules contains adenine, ribose, and three phosphates?A) ATPB) NAD+C) NADP+D) FADAnswer: A) ...

Which of the following is the coenzyme that functions as an electron carrier in photosynthesis?

Which of the following is the coenzyme that functions as an electron carrier in photosynthesis?A) ATPB) NAD+C) NADP+D) FADAnswer: C) NA...

Which of the following is true regarding the transport of molecules?

Which of the following is true regarding the transport of molecules?A) Facilitated diffusion transports molecules against the concentration gradient,...

Which of the following is found in plant cells?

Which of the following is found in plant cells?A) gap junctionsB) plasmodesmataC) desmosomesD) tight junctionsAnswer: B) plasmodesm...

Many fields require heavy irrigation, and in desert areas, much of that water evaporates, leaving behind solutes. This may cause plant cells

Many fields require heavy irrigation, and in desert areas, much of that water evaporates, leaving behind solutes. This may cause plant cellsA) to become...

Plant cells placed in a hypotonic environment

Plant cells placed in a hypotonic environmentA) will lyse without special adaptations to combat water concentration fluctuations.B) will remain flaccid,...

Which of the following molecules compares freely through the lipid bilayer?

Which of the following molecules compares freely through the lipid bilayer?A) K+B) glucoseC) HCO3-D) CO2Answer: D) ...

The rate of diffusion can be increased by

The rate of diffusion can be increased byA) increasing the temperature.B) decreasing pressure.C) increasing the size of the molecules.D) decreasing concentration.Answer: A)...

An artificial cell consisting of an aqueous solution with 0.5 M sucrose and 0.2 M glucose that is permeable only two monosaccharides is placed in a beaker of water containing 0.2 M sucrose and 0.1 M glucose. Which of the following will occur?

An artificial cell consisting of an aqueous solution with 0.5 M sucrose and 0.2 M glucose that is permeable only two monosaccharides is placed in a beaker...

Which of the following observations could lead researchers to conclude that membrane proteins move laterally in the plasma membrane?

Which of the following observations could lead researchers to conclude that membrane proteins move laterally in the plasma membrane?A) A cell is freeze-fractured...

The process by which a single pump transports a specific molecule while indirectly driving the movement of other molecules is called

The process by which a single pump transports a specific molecule while indirectly driving the movement of other molecules is calledA) phagocytosis.B)...

Which of the following examples is a specific case of active transport?

Which of the following examples is a specific case of active transport?A) A carrier proteins moves sucrose across the membrane with the concentration...

Which of the following structures is the most inclusive?

Which of the following structures is the most inclusive?A) nucleusB) DNAC) chromosomesD) nucleolusAnswer: A) nucl...

Several diseases, including Tay-Sachs and Pompe's disease, are caused by the absence of one or more enzymes to break down biomolecules, such as lipids and proteins. Which of the following organelles is most likely dysfunctional in these diseases?

Several diseases, including Tay-Sachs and Pompe's disease, are caused by the absence of one or more enzymes to break down biomolecules, such as lipids...

Found in high concentration in liver cells to detoxify drugs

Found in high concentration in liver cells to detoxify drugsA) MitochondriaB) Smooth endoplasmic reticulumC) ChloroplastD) LysosomeAnswer: B) Smooth...

contains stacks called grabs that are integral in photosynthesis

contains stacks called grabs that are integral in photosynthesisA) MitochondriaB) Smooth endoplasmic reticulumC) ChloroplastD) LysosomeAnswer: C)...

produces ATP for cellular energy

produces ATP for cellular energyA) MitochondriaB) Smooth endoplasmic reticulumC) ChloroplastD) LysosomeAnswer: A) Mitochond...

converts CO2 and H2O to glucose

converts CO2 and H2O to glucoseA) MitochondriaB) Smooth endoplasmic reticulumC) ChloroplastD) LysosomeAnswer: C) Chloropl...

Evidence supporting the fact that an increase in the amount of surface area directly increases the efficiency of cellular processes would NOT be shown by which of these?

Evidence supporting the fact that an increase in the amount of surface area directly increases the efficiency of cellular processes would NOT be shown...

Your biology teacher shows you an electron micrograph image of a cell that contains DNA, ribosomes, and leucoplasts, and it has a cell wall. Which of the following types of organisms contains this cell?

Your biology teacher shows you an electron micrograph image of a cell that contains DNA, ribosomes, and leucoplasts, and it has a cell wall. Which of...

Tay-Sachs disease often affects children by progressively destroying cells in their brains due to the accumulation of a specific type of fat. This is due to the fact that

Tay-Sachs disease often affects children by progressively destroying cells in their brains due to the accumulation of a specific type of fat. This is...

Which of the following cells is most likely to contain projections called cilia?

Which of the following cells is most likely to contain projections called cilia?A) water transport cells in plantsB) sperm cells in animalsC) sugar transport...

A large number of chromoplasts would likely be found in which of the following types of plant cells?

A large number of chromoplasts would likely be found in which of the following types of plant cells?A) cells that transport waterB) cells that transport...

Which of the descriptions is true about unsaturated fatty acids?

Which of the descriptions is true about unsaturated fatty acids?A) higher rate of combustion than saturated fatsB) no double bondsC) more rigid at room...

Ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) differ structurally in that

Ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) differ structurally in thatA) DNA is single-stranded, and RNA is double-stranded.B) DNA contains...

Which of the following statements is true regarding chaperone proteins?

Which of the following statements is true regarding chaperone proteins?A) they specify the correct structure of a polypeptideB) they are carbohydrates...

The level of proteins structure that involves interactions between the side chains of the amino acids rather than interactions between molecules within the back bone is:

The level of proteins structure that involves interactions between the side chains of the amino acids rather than interactions between molecules within...

A change in which of the following structural components will consequently change the function of each amino acid?

A change in which of the following structural components will consequently change the function of each amino acid?A) amino groupB) a carbonC) carboxyl...

A dehydration reaction in the synthesis of a fat

A dehydration reaction in the synthesis of a fatA) creates glycostatic linkages between the glycerol and the fatty acids.B) removes one molecule of water...

The polysaccharide stored in plant cells that enables them to store glucose is

The polysaccharide stored in plant cells that enables them to store glucose isA) cellulose.B) glycogen.C) starch.D) chitin.Answer: C) star...

Hydrocarbons do not vary in

Hydrocarbons do not vary inA) length.B) branching.C) bonding patterns.D) composition.Answer: D) compositi...

Which of the following atoms has four electrons available for covalent bonding, and can form rings, long chains, and double bonds, making it the building block of the most versatile complex biological molecules?

Which of the following atoms has four electrons available for covalent bonding, and can form rings, long chains, and double bonds, making it the building...

Which of the following elements is one of the six most common elements in living organisms?

Which of the following elements is one of the six most common elements in living organisms?A) carbonB) sodiumC) ironD) potassiumAnswer: A) car...

If you place the corner of a paper towel into a droplet of water, the water moves across the paper towel. Which of the following would best explain the movement of the water?

If you place the corner of a paper towel into a droplet of water, the water moves across the paper towel. Which of the following would best explain the...

If water had a low heat capacity,

If water had a low heat capacity,A) temperature changes would require a great deal of energy input.B) the water in organisms would heat quickly and cause...

Why is it important that hydrogen ions in two different water molecules would be attracted to one another or that the oxygen atoms in two water molecules would repel one another?

Why is it important that hydrogen ions in two different water molecules would be attracted to one another or that the oxygen atoms in two water molecules...

A buffer works by

A buffer works byA) accepting hydrogen ions from the solution when they are in excess.B) irreversibly combining with hydrogen ions to neutralize a base.C)...

One of the most common biological fluids which may be outside of the neutral pH range of 6-8 is

One of the most common biological fluids which may be outside of the neutral pH range of 6-8 isA) tears.B) stomach fuilds.C) blood.D) urine.Answer: B)...

Ionic bonds involve the

Ionic bonds involve theA) equal sharing of electrons.B) transfer of electrons.C) uneven sharing of electrons.D) asymmetric distribution in molecules.Answer: B)...

Hydrogen bonds and ionic bonds are weak interactions. Therefore,

Hydrogen bonds and ionic bonds are weak interactions. Therefore,A) their cumulative effects reinforce molecular structure, making them biologically significant.B)...

In a molecule of DNA, the bonds holding the side chains must be strong, whereas the bonds holding the rungs of the ladder between the nucleic acids must break during DNA replication. What types of bonds are most likely present between adenine and thymine and cytosine and guanine in a DNA molecule?

In a molecule of DNA, the bonds holding the side chains must be strong, whereas the bonds holding the rungs of the ladder between the nucleic acids must...

Which of the following statements is not true regarding the properties of water?

Which of the following statements is not true regarding the properties of water?A) Hydrogen bonds require less energy to break than do covalent bonds.B)...

If the student were to revise this experiment, which of the following modifications would improve the experimental design of the investigation?

A student set up an experiment using Drosophila melanogaster. The student wished to determine the LC-50 dose of caffeine exposure to this particular species...

Organisms of the same family would NOT necessarily be classified in the same

Organisms of the same family would NOT necessarily be classified in the sameA) genusB) phylumC) classD) orderAnswer: A) ge...

Over time, one group of squirrels become separated from another group. Due to erosion and the subsequent formation of a river, the squirrels are unable to cross. The geographic barrier prevents breeding between the two groups of squirrels. Which term could be used to describe each group of squirrels?

Over time, one group of squirrels become separated from another group. Due to erosion and the subsequent formation of a river, the squirrels are unable...

A student collects a multicellular photosynthetic organism from a nearby pond. This organism should be classified as a(n)

A student collects a multicellular photosynthetic organism from a nearby pond. This organism should be classified as a(n)A) plantB) animalC) fungusD)...

Organisms from which of the following categories can survive in harsh environments devoid of oxygen?

Organisms from which of the following categories can survive in harsh environments devoid of oxygen?A) Kingdom PlantaeB) Domain BacteriaC) Kingdom FungiD)...

A squirrel and a rabbit, both in the same community, must also be in the same

A squirrel and a rabbit, both in the same community, must also be in the sameA) speciesB) populationC) genusD) biosphereAnswer: D) biosph...

Vestigial traits and neutral changes in DNA sequences are good examples of _____.

Vestigial traits and neutral changes in DNA sequences are good examples of _____.a. nonadaptive traitsb. acclimationc. convergent traitsd. developmental...

Genetic variation _____.

Genetic variation _____.a. is created by the direct action of natural selectionb. tends to be reduced by when diploid organisms produce gametesc. must...

Three-spined stickleback fish (Gasterosteus aculeatus) show substantial heritable variation in gill-raker length related to differences in their diets. Longer gill rakers appear to function better for capturing open-water prey, while shorter gill rakers function better for capturing shallow-water prey. Which of the following types of selection is most likely to be found in a large lake (open water in the middle and shallow water around the sides) with a high density of these fish?

Three-spined stickleback fish (Gasterosteus aculeatus) show substantial heritable variation in gill-raker length related to differences in their diets....

When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often receive a greater proportion of care and resources from parents than do the offspring of the majority sex. This is most clearly an example of _____.

When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often...

Which of the following is most likely to produce an African butterfly species in the wild whose populations show two strikingly different color patterns?

Which of the following is most likely to produce an African butterfly species in the wild whose populations show two strikingly different color patterns?a....

The Dunkers are a religious group that moved from Germany to Pennsylvania in the mid-1700s. They do not marry with members outside their own immediate community. Today, the Dunkers are genetically unique and differ in gene frequencies, at many loci, from all other populations including those in their original homeland. Which of the following likely explains the genetic uniqueness of this population?

The Dunkers are a religious group that moved from Germany to Pennsylvania in the mid-1700s. They do not marry with members outside their own immediate...

Which of the following is the most predictable outcome of increased gene flow between two populations?

Which of the following is the most predictable outcome of increased gene flow between two populations?a. increased genetic driftb. lower average fitness...

A proficient engineer can easily design skeletal structures that are more functional than those currently found in the forelimbs of such diverse mammals as horses, whales, and bats. The actual forelimbs of these mammals do not seem to be optimally arranged because _____.

A proficient engineer can easily design skeletal structures that are more functional than those currently found in the forelimbs of such diverse mammals...

Two frog populations (same species) living in two neighboring lakes sing slightly different courtship songs. Increased irrigation makes the land between the two lakes wetter, allowing frogs to expand their ranges to the area between the lakes. Females in both populations prefer loud frogs to quieter frogs, but do not distinguish between the two slightly different songs. Assuming that courtship song differences have a genetic basis, predict what will likely happen to the songs of the two frog populations.

Two frog populations (same species) living in two neighboring lakes sing slightly different courtship songs. Increased irrigation makes the land between...

Genetic drift occurs in a population. Which of the following statements might be true?

Genetic drift occurs in a population. Which of the following statements might be true?a. Genetic drift decreased the population's fitness.b. Genetic drift...

Most Swiss starlings produce four to five eggs in each clutch. Starlings producing fewer or more than this have reduced fitness. Which of the following terms best describes this situation?

Most Swiss starlings produce four to five eggs in each clutch. Starlings producing fewer or more than this have reduced fitness. Which of the following...

Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?

Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind...

Which of the following is a fitness trade-off (compromise)?

Which of the following is a fitness trade-off (compromise)?a. Hummingbirds are the best pollinators of certain flowers, but bees are the best pollinators...

Swine are vulnerable to infection by bird flu virus and human flu virus, which can both be present in an individual pig at the same time. When this occurs, it is possible for genes from bird flu virus and human flu virus to be combined. If the human flu virus contributes a gene for Tamiflu resistance (Tamiflu is an antiviral drug) to the new virus, and if the new virus is introduced to an environment lacking Tamiflu, then what is most likely to occur?

Swine are vulnerable to infection by bird flu virus and human flu virus, which can both be present in an individual pig at the same time. When this occurs,...

Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. If 9 in 10,000 newborn babies have the disease, what are the expected frequencies of the dominant (A1) and recessive (A2) alleles according to the Hardy-Weinberg model?

Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. If 9 in 10,000 newborn babies have the disease,...

Mutation is the only evolutionary mechanism that _____.

Mutation is the only evolutionary mechanism that _____.a. is more important in eukaryotes than in prokaryotesb. decreases fitnessc. happens in all populationsd....

A researcher wants to know if gene flow is contributing to evolution of drought tolerance of pitcher plants in a specific bog. As a control, she should

A researcher wants to know if gene flow is contributing to evolution of drought tolerance of pitcher plants in a specific bog. As a control, she shoulda....

Natural selection _____.

Natural selection _____.a. can favor beneficial mutationsb. does not affect harmful mutationsc. is a random processd. creates beneficial mutationsAns...

In 1986, a nuclear power accident in Chernobyl, USSR (now Ukraine), led to high radiation levels for miles surrounding the plant. The high levels of radiation caused elevated mutation rates in the surviving organisms, and evolutionary biologists have been studying rodent populations in the Chernobyl area ever since. Based on your understanding of evolutionary mechanisms, which of the following most likely occurred in the rodent populations following the accident?

In 1986, a nuclear power accident in Chernobyl, USSR (now Ukraine), led to high radiation levels for miles surrounding the plant. The high levels of radiation...

For biologists studying a large flatworm population in the lab, which Hardy-Weinberg condition is most difficult to meet?

For biologists studying a large flatworm population in the lab, which Hardy-Weinberg condition is most difficult to meet?a. no genetic driftb. random...

In the Hardy-Weinberg equation, 2pq equals the percentage of _____.

In the Hardy-Weinberg equation, 2pq equals the percentage of _____.a. frequency of dominant alleleb. expected frequency of homozygous dominant genotypesc....

For a biologist studying a small fish population in the lab, which Hardy-Weinberg condition is easiest to meet?

For a biologist studying a small fish population in the lab, which Hardy-Weinberg condition is easiest to meet?a. no genetic driftb. no mutationc. random...

Evolution in a population of island iguanas can be caused by the following agent(s):

Evolution in a population of island iguanas can be caused by the following agent(s):a. Natural selectionb. Gene flowc. Genetic driftd. All of the abovee....

Genetic drift always occurs, but its effect on allele frequencies in very large populations is much less pronounced than in small populations. T/F

Genetic drift always occurs, but its effect on allele frequencies in very large populations is much less pronounced than in small populations. T/FAns...

Random changes to allele frequencies due to events that do not depend on fitness do not lead to evolution. T/F

Random changes to allele frequencies due to events that do not depend on fitness do not lead to evolution. T/FAnswer: Fa...

Gene flow always increases genetic variation. T/F

Gene flow always increases genetic variation. T/FAnswer: Fa...

If natural selection is NOT acting on a monogenic trait, then allele frequencies of the gene encoding for the trait remain constant. T/F

If natural selection is NOT acting on a monogenic trait, then allele frequencies of the gene encoding for the trait remain constant. T/FAnswer: ...

Which of the following describes the mechanism of gene flow?

Which of the following describes the mechanism of gene flow?A. random matingB. migrationC. genetic driftD. selectionAnswer:&nbs...

Name the 5 assumptions required for Hardy-Weinberg equilibrium in a population.

Name the 5 assumptions required for Hardy-Weinberg equilibrium in a population.Answer: random mating, no genetic drift, no gene flow, no mutations,...

If the frequency of two alleles in a gene pool is 90% A and 10% a, what is the frequency of individuals with genotype Aa in a population in Hardy-Weinberg equilibrium?

If the frequency of two alleles in a gene pool is 90% A and 10% a, what is the frequency of individuals with genotype Aa in a population in Hardy-Weinberg...

Which of the following is NOT a condition that must be met for Hardy-Weinberg equilibrium from generation to generation?

Which of the following is NOT a condition that must be met for Hardy-Weinberg equilibrium from generation to generation?A. Large population sizeB. No...

Mutations increase fitness

Mutations increase fitnessA) alwaysB) oftenC) rarelyD) neverAnswer:&nbs...

Chromosome-level mutations can:

Chromosome-level mutations can:A) duplicate an existing alleleB) lead to deletion and loss of an alleleC) guarantee that duplicated alleles are going...

Every bacterial gene allele must be directly inherited from the parent bacterial cell via DNA replication.

Every bacterial gene allele must be directly inherited from the parent bacterial cell via DNA replication.A) trueB) falseAnswer:&nbs...

Lateral (or horizontal) gene transfer is the movement of genetic material between parent and offspring.

Lateral (or horizontal) gene transfer is the movement of genetic material between parent and offspring.A) trueB) falseAnswer:&nbs...

Sexual reproduction is the main source of new alleles that natural selection acts upon

Sexual reproduction is the main source of new alleles that natural selection acts uponA) trueB) falseAnswer:&nbs...

A mutation always causes a mutant phenotype.

A mutation always causes a mutant phenotype.A) trueB) falseC) cannot be determinedAnswer:&nbs...

A spontaneous mutation usually originates as an error in

A spontaneous mutation usually originates as an error inA) DNA replication.B) transcription.C) translation.D) protein degradation.Answer:&nbs...

Which of the following is a fitness trade-off (compromise)?

Which of the following is a fitness trade-off (compromise)?a. Hummingbirds are the best pollinators of certain flowers, but bees are the best pollinators...

Most indoor foliage plants need which kind of lighting?

Most indoor foliage plants need which kind of lighting?A. Direct sunlightB. Bright indirect lightC. Medium lightD. Bright lightAnswer: B. Bright...

The following is not a characteristic of an insect:

The following is not a characteristic of an insect:A. Two tentaclesB. Six legsC. Two pairs of wingsD. Three body segmentsAnswer: A. Two tentac...

Which of the following would be a direct cost in a floral shop:

Which of the following would be a direct cost in a floral shop:A. Cut flowers in the coolerB. Insurance for the shop's buildingC. Energy billsD. Membership...

Which of the following could be used to preserve or dry flowers and foliage?

Which of the following could be used to preserve or dry flowers and foliage?A. Silica gelB. SandC. GlycerinD. All of the aboveAnswer: D. All of the...

If one were to make a tint of yellow, what color would be added?

If one were to make a tint of yellow, what color would be added?A. BlackB. GrayC. WhiteD. Any of the aboveAnswer: C. Wh...

Aluminum can affect the color of what florist's flower?

Aluminum can affect the color of what florist's flower?A. HydrangeaB. DahliaC. ZinniaD. Asiatic LilyAnswer: A. Hydran...

__________ is the development of a plant from a seed or spore.

__________ is the development of a plant from a seed or spore.A. ScarificationB. StratificationC. VernalizationD. GerminationAnswer: D. Germinat...

The first thing to do before applying a pesticide is ____________________.

The first thing to do before applying a pesticide is ____________________.A. Fill the spray tankB. Read the labelC. Put on personal protective equipmentD....

____________ is when a plant secretes a substance to inhibit growth of another plant.

____________ is when a plant secretes a substance to inhibit growth of another plant.A. AllelopathyB. AnthesisC. TranscriptionD. TranslationAnswer: A....

A greenhouse pest that is small with tan, feather-like wings would likely be a ______________________.

A greenhouse pest that is small with tan, feather-like wings would likely be a ______________________.A. Fungus gnatB. Greenhouse whiteflyC. Western flower...

The process of _______________ is when a plant loses water through stomata.

The process of _______________ is when a plant loses water through stomata.A. TransductionB. TranslocationC. TranspirationD. None of the aboveAnswer: C....

The primary benefit(s) of shading a greenhouse is (are):

The primary benefit(s) of shading a greenhouse is (are):A. To keep the greenhouse temperatures lowerB. To reduce light intensityC. To reduce pest populationsD....

Which of the following flowers could be used as a focal point in a floral design?

Which of the following flowers could be used as a focal point in a floral design?A. Wax flowerB. Bird-of-ParadiseC. Miniature CarnationD. Leatherleaf...

Which of the following greenhouse substrate components is derived from volcanic rock?

Which of the following greenhouse substrate components is derived from volcanic rock?A. VermiculiteB. PerliteC. PeatD. Bark MediumAnswer: B. Per...

Flowers, such as Baby's Breath or Aster, are commonly referred to as ____________ flowers in floral arrangements.

Flowers, such as Baby's Breath or Aster, are commonly referred to as ____________ flowers in floral arrangements.A. TextureB. FocalC. FillerD. FormAnswer: C....

The height of an arrangement should be at least ___________ times the container's greatest dimension.

The height of an arrangement should be at least ___________ times the container's greatest dimension.A. 1⁄2B. 1 1⁄2C. 3D. 5Answer: B. 1 ...

The _____________ civilization is credited with being one of the first cultures to use floral arrangements in their homes.

The _____________ civilization is credited with being one of the first cultures to use floral arrangements in their homes.A. AmericanB. GreekC. EuropeanD....

The item "labeled X" in the figure below, is the ____________, which attaches the leaf to the stem.

The item "labeled X" in the figure below, is the ____________, which attaches the leaf to the stem.A. PetioleB. StipuleC. MidribD. ApexAnswer: A....

When a plant is showing signs of ___________ deficiency, you might notice the leaves turning a dark to reddish leaf color.

When a plant is showing signs of ___________ deficiency, you might notice the leaves turning a dark to reddish leaf color.A. NitrogenB. PhosphorusC. PotassiumD....

The waxy coating on the outside of a leaf, called the __________, serves to prevent excessive water loss from the leaf tissues.

The waxy coating on the outside of a leaf, called the __________, serves to prevent excessive water loss from the leaf tissues.A. PetioleB. StomaC. CuticleD....

In order to have a year-round supply of cut flowers, such as Tulips and Crocus, that grow from bulbs; greenhouse growers are known to __________ bulbs. This means they plant bulbs out of season and grow them in a cold or refrigerated area for 10-12 weeks.

In order to have a year-round supply of cut flowers, such as Tulips and Crocus, that grow from bulbs; greenhouse growers are known to __________ bulbs....

A growing media amendment that is grown primarily in marshes, bogs or swamps and has a high- water holding capacity is known as ___________.

A growing media amendment that is grown primarily in marshes, bogs or swamps and has a high- water holding capacity is known as ___________.A. PerliteB....

One popular way of identifying plants is to observe their leaf ____________; which will tell the person if the leaves are opposite, alternate, whorled, etc.

One popular way of identifying plants is to observe their leaf ____________; which will tell the person if the leaves are opposite, alternate, whorled,...

Most plants grow best in the 40-80 percent relative _____________ range. This is the amount of moisture that is contained in the air surrounding the plant.

Most plants grow best in the 40-80 percent relative _____________ range. This is the amount of moisture that is contained in the air surrounding the plant.A....

Rubber Plants are commonly reproduced through an asexual propagation method known as ___________, which is shown to the right.

Rubber Plants are commonly reproduced through an asexual propagation method known as ___________, which is shown to the right.A. Air layeringB. Compound...

Greenhouse production often requires insecticides to be sprayed to prevent insect damage on flowers. Insecticides that are applied in gaseous form are ________________________.

Greenhouse production often requires insecticides to be sprayed to prevent insect damage on flowers. Insecticides that are applied in gaseous form are...

The ______________ container is 1⁄2 as high as it is wide.

The ______________ container is 1⁄2 as high as it is wide.A. Standard potB. Bulb panC. Azalea potD. Mum potAnswer: B. Bulb ...

Botrytis often presents itself on flowers as gray mold. This disease is caused by a(an) __________.

Botrytis often presents itself on flowers as gray mold. This disease is caused by a(an) __________.A. FungusB. VirusC. BacteriaD. Environmental ConditionAnswer: A....

The amount of light a plant receives greatly influences root growth, shoot growth, and flowering. The highest quality greenhouse plants need ______________ foot candles of light per day?

The amount of light a plant receives greatly influences root growth, shoot growth, and flowering. The highest quality greenhouse plants need ______________...

In a horticulture business, the product you choose to produce and retail should be at what price above the total production and marketing costs (all fixed and variable costs) to make it feasible to produce and sell?

In a horticulture business, the product you choose to produce and retail should be at what price above the total production and marketing costs (all fixed...

Double layer poly should have how much space between layers for proper inflation and full insulation?

Double layer poly should have how much space between layers for proper inflation and full insulation?A. 1 inchB. 12-14 inchesC. At least 2 feetD. 6-8...

Auxins and gibberellic acid are hormones in plants that promote growth through ____________________.

Auxins and gibberellic acid are hormones in plants that promote growth through ____________________.A. Cell divisionB. Cell enlargementC. Cell specializationD....

An acid loving crop grows best at a pH of ____________.

An acid loving crop grows best at a pH of ____________.A. 6.8-7.4B. 6.2-6.8C. 4.5-5.8D. 5.8-6.2Answer: C. 4.5-...

In the following list of pesticides the ________________ must be mixed with water to apply.

In the following list of pesticides the ________________ must be mixed with water to apply.A. Emulsifiable concentrateB. GranulesC. DustsD. BaitsAnswer: A....

The part of the plant stem that produces all new cells is the

The part of the plant stem that produces all new cells is theA. HeartwoodB. XylemC. PhloemD. CambiumAnswer: D. Camb...

Which wiring method should be used for carnations when they are to be used in corsages and boutonnieres?

Which wiring method should be used for carnations when they are to be used in corsages and boutonnieres?A. PiercingB. ClutchC. HookD. StitchAnswer: A....

Clogged stems in cut flowers are caused by an air embolism. An air embolism is

Clogged stems in cut flowers are caused by an air embolism. An air embolism isA. Where disease organisms move into the flower from the air clogging the...

A Hogarth Curve floral design is created by

A Hogarth Curve floral design is created byA. An "O" shapeB. A "C" shapeC. A "S" shapeD. A "H" shapeAnswer: C. A "S" sh...

Which bouquet style would be best for a full wedding gown with a long train?

Which bouquet style would be best for a full wedding gown with a long train?A. Tussy MussyB. CascadingC. PresentationD. Round ClusterAnswer: B. ...