ecmendoza2002 ecmendoza2002

22-06-2017
Biology

contestada

Based on the sedimentary rock diagram below, which statement is true? A. Lethal diseases are inevitable. B. Fish evolved from amphibians. C. Environmental changes led to episodic speciation. D. Mass speciation led to mutations and extinction.

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ashmorgan13 ashmorgan13

22-06-2017

the answer would be D

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