Reassortment of a virus that results in antigenic shift most commonly occurs in

a. adults.
b. any animal infected with more than one virus strain.
c. children.
d. domesticated animals.


Answer: B

Biology & Microbiology

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Which one of the following animals would most likely be defined as a keystone species?

A) sea otter B) housefly C) fathead minnow D) nauplii (a species of zooplankton)

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These pathways process stimuli received from the internal organs

A. Somatosensory pathways B. Internosensory pathways C. Viscerosensory pathways D. Somatomotor pathways E. Visceromotor pathways

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Where in the cell are the receptor proteins located on the postsynaptic cell synthesized?

A. the Golgi apparatus B. the cytoplasm C. the rough endoplasmic reticulum D. the lysosome

Biology & Microbiology

The results of the experiment represented in the accompanying figure and similar experiments include the formation of all of the following except:


a. sugars.
b. lipids.
c. ATP.
d. amino acids.
e. oxygen

Biology & Microbiology