21. Evolution by Natural Selection
Descent with Modification
0:55 minutes
Problem 1c
Textbook Question
Textbook QuestionWhich of the following is not an observation or inference on which natural selection is based? a. There is heritable variation among individuals. b. Poorly adapted individuals never produce offspring. c. Species produce more offspring than the environment can support. d. Only a fraction of an individual's offspring may survive.
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