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The idea that speciation occurs in bursts, between long periods of genetic equilibrium is called —

a. punctuated equilibrium.
b. stabilizing selection.
c. genetic drift.
d. gradualism.

User Vikramls
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Answer:

a. punctuated equilibrium.

Step-by-step explanation:

PF!

User Michael Brux
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punctuated equilibrium 
User Seal
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