Which of the following has the strongest influence on the ability of a male white-crowned sparrow to sing at all?

a. acoustical stimuli
b. social interaction with any songbird
c. visual stimuli
d. social interaction with other white-crowned sparrows
e. innate behaviors


e

Biology & Microbiology

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Cell plate formation

a. occurs in plant cells but not in animal cells. b. usually begins during telophase. c. is a result of fusion of Golgi vesicles. d. is all of the above.

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Which of the following areas is still seeing an

increase in deforestation? a. North America b. Europe c. China d. Brazil e. None of these

Biology & Microbiology

Exercise can trigger an asthma attack. This is especially true if someone goes for a long run on a cold morning. The two main causes of narrowing of the bronchiole passageways can be treated with drugs that act in different ways. What are the two causes

of this narrowing, and how can drugs work to counteract these conditions? What will be an ideal response?

Biology & Microbiology

The synthesis of ATP from ADP and Pi, when coupled with an exergonic chemical reaction is called ________ phosphorylation.

A. chemiosmotic B. substrate-level C. conformational change D. oxidative

Biology & Microbiology