Chapter 15: The Theory of Evolution

a. accommodation. c. adaptation. b. variation. d. acclimation. ____ 11. According to Darwin, evolution occurs. a. only through artificial selection. b. during half-life periods of 5,715 years. c. because of natural selection. d. so rapidly that it can be observed easily. ____ 12. The major idea that Darwin presented in his book The Origin of ... ................
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