A restriction in genetic variability caused by a drastic reduction in population size is called a
A. adaptive effect.
B. bottleneck effect.
C. Hardy-Weinberg effect.
D. founder effect.
E. polymorphic effect.
Answer: B
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Food is classified as chyme in the ____
a. large intestine b. liver c. mouth d. small intestine e. stomach
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Answer the following statement true (T) or false (F)
The evolutionary effects of genetic drift are greatest when _____.
A) the population size is large B) intraspecific competition is intense C) the population size is small D) intraspecific competition is weak E) sexual selection occurs