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In your study of the fossil record of early mammals, you notice a changing environment is followed by the initial appearance of a tree-climbing species, which is then followed by many later tree-climbing species. This is an example of A) anagenesis. B) gradualism. C) species selection. D) adaptive radiation.

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In your study of the fossil record of early mammals, you notice a changing environment is
followed by the initial appearance of a tree-climbing species, which is then followed by many
later tree-climbing species. This is an example of
A) anagenesis.
B) gradualism.
C) species selection.
D) adaptive radiation.
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D) adaptive radiation.
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