Two nearby populations in which there is some movement of individuals between the populations are an example of:

A) gene flow. B) genetic drift.
C) disruptive selection. D) bottleneck effect.


Answer: A

Biology & Microbiology

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Which of the following describes the exchange of gases between a respiratory surface and the

circulatory system?

a. ventilation b. cellular respiration c. perfusion d. bulk flow e. physiological respiration

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The study of the genetic variability within a population and the forces that change allele frequencies is:

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According to the sliding-filament model of muscle contraction, a sarcomere contracts when its ________

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