An advantage of human testes being positioned in an external sac rather than in the abdominal cavity is that the

A) distance that semen must travel during ejaculation is shortened.
B) distance that sperm must swim during insemination is shortened.
C) testes can be kept cooler than the body's interior.
D) testes can enlarge during sexual maturation.


Answer: C

Biology & Microbiology

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Which of the following is an example of an effect of natural selection.

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