Fossil evidence shows that some species changed very little over geologic time, while others changed gradually and at a relatively constant rate. In many cases, however, species changed very rapidly during relatively brief time spans.
The pattern of punctuated equilibrium applies to the evolution of which group of species?
A all species that developed new adaptations over time
B. species that evolved very rapidly during relatively brief time spans
O
C. species that evolved gradually and at a relatively constant rate
D. species that changed very little over geologic time.
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