Zoonotic disease
A) is caused by suborganismal pathogens such as viruses, viroids, and prions only.
B) is caused by pathogens that are transferred from other animals to humans by direct contact or by means of a vector.
C) can only be spread from animals to humans through direct contact.
D) can only be transferred from animals to humans by means of an intermediate host.
E) is too specific to study at the community level, and studies of zoonotic pathogens are relegated to organismal biology.
Answer: B - caused by pathogens that are transferred from other animals to humans by direct contact or by means of a vector
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Biology
- The osmoregulatory/excretory system of a freshwater flatworm is based on the operation of _____.
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- The production of antibodies
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- All of the following are directly involved in protein turnover except _______.
- Components of the transulfuration pathway include all of the following except _____.
- Homogentisate is an intermediate in the degradation of __________.
- Amino acids whose degradation yields a-ketoglutarate include all of the following except _________.
- Amino acids whose degradation yields succinyl-CoA includes all of the following except ________.
- Which of the following reactions require SAM?
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- Amino acids whose degradation yields acetyl-CoA include all of the following except ________.
- All of the following are referred to collectively as the branched chain amino acids except _________.
- The fixation of nitrogen requires _______.
- Asparagine is formed from aspartic acid and _________ .
- The oxidation state of the methenyl group (-CH=) is comparable to that of ____.
- All of the following are directly involved in the synthesis of deoxyribonucleic acid except _______.
- One-carbon carriers in metabolism include
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- Chorismate is a precursor in the synthesis of all of the following except _______.
- SAM is a methyl donor in the synthesis of ______.
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- All of the following are purine bases except _____.