Ecosystems and Biomes
Showing posts with label Ecosystems and Biomes. Show all posts
Showing posts with label Ecosystems and Biomes. Show all posts

What constitutes a food web?

01:15

What constitutes a food web?



A - A combination of food chains that are interconnected to create a network of feeding relationships
B - A complex food chain that consists of omnivores who feed on both herbivores and other omnivores
C - A sequence of omnivores who feed on each other
D - A sequence of organisms that feed on each other


Answer: A - A combination of food chains that are interconnected to create a network of feeding relationships

What can a herbivore be categorized as?

01:15

What can a herbivore be categorized as?



A - A producer
B - A detritivore
C - An autotroph
D - A primary consumer


Answer: D - A primary consumer

What are the ingredients and end product if photosynthesis?

01:14

What are the ingredients and end product if photosynthesis?



A - Oxygen, water, organic salts, and energy from sunlight make complex organic molecules.
B - Oxygen, water, organic salts, and energy from sunlight make simple inorganic molecules.
C - Carbon dioxide, water, oxygen, and energy from sunlight make complex organic molecules.
D - Carbon dioxide, water, inorganic salts, and energy from sunlight make complex organic molecules.
E - Carbon dioxide, water, inorganic salts, and energy from sunlight make simple inorganic molecules.


Answer: D - Carbon dioxide, water, inorganic salts, and energy from sunlight make complex organic molecules.

What factors differentiate high level primary production areas from moderate or low level production areas?

01:14

What factors differentiate high level primary production areas from moderate or low level production areas?



A - The nutrients and sunlight
B - The types of plants and the weather conditions
C - The amount of sunlight and water
D - The amounts of water the plants can absorb
E - The amount of water, nutrients, sunlight, and optimal temperatures


Answer: E - The amount of water, nutrients, sunlight, and optimal temperatures that is available

What is the PROPER definition of primary production?

01:11

What is the PROPER definition of primary production?



A - The amount of recycled organic material, or biomass, created by the primary producers in an ecosystem
B - The amount of new organic material, or biomass, created by secondary producers in an ecosystem
C - The amount of new organic material, or biomass, created by the primary producers in an ecosystem
D - The amount of new organic material, or bioplants, created by the primary producers in an ecosystem
E - The amount of new inorganic material, or bioplants, created by the primary producers in an ecosystem


Answer: C - The amount of new organic material, or biomass, created by the primary producers in an ecosystem

What biome has the greatest species richness?

01:10

What biome has the greatest species richness?



A - Desert
B - Temperate deciduous forests
C - Tropical rain-forests
D - Coral reefs


Answer: E - Freshwater aquatic

Why is primary production important to humans?

01:10

Why is primary production important to humans?



A - Plants remove carbon dioxide from the air and create oxygen. Primary production areas also provide humans and other species with food sources. Low production areas are still beneficial because they are home to rare species.
B - Primary production areas use oxygen to produce carbon dioxide and food sources. Low production areas are home to rare species that are not important to humans.
C - Primary production areas produce carbon dioxide and food sources. Areas of low production produce more oxygen that is beneficial to humans.
D - Primary production provides food sources therefore area of low production doesn't have any benefit to humans.


Answer: A - Plants remove carbon dioxide from the air and create oxygen. Primary production areas also provide humans and other species with food sources. Low production areas are still beneficial because they are home to rare species.

Which of the following statements about estuaries are true?

01:07

Which of the following statements about estuaries are true?


I. They are the gateway to freshwater breeding grounds of some marine animals II. They are the breeding grounds for many types of aquatic animals III. Estuaries are resistant to pollution because the constant inflow of freshwater flushes the pollutants out into the ocean. IV. They are areas where freshwater streams or rivers merge with the sea


A - All are true
B - I, II, and IV
C - II, III, and IV
D - III and IV
E - I, II, and III
F - None are true


Answer: B - I, II, and IV

Which part of the Sierra Nevada mountain range receives the highest amount of rainfall?

01:06

Which part of the Sierra Nevada mountain range receives the highest amount of rainfall? 



A - Rainfall is evenly dispersed over all areas of the Sierra Nevada mountain range
B - Higher elevations of the Western slopes
C - Lower elevations of the Eastern slopes
D - Higher elevations of the Eastern slopes
E - Lower elevations of the Western slopes


Answer: B - Higher elevations of the Western slopes

What is a taiga biome?

01:06

What is a taiga biome?



A - A biome characterized by vast marshes
B - A biome characterized by extremely cold temperatures and a complete absence of plant growth
C - A biome characterized by forests composed of evergreen conifers
D - A biome characterized by open grassland and a temperate climate
E - A biome characterized by extremely cold environments with very short growing seasons that can barely support small plant growth


Answer: C - A biome characterized by forests composed of evergreen conifers

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