AP Biologyeasymcq1 pt
Allopatric speciation begins with
A.geographic separation of a population
B.reproductive isolation without geography
C.hybridization between species
D.an increase in gene flow
Explanation
Core Concept
A barrier (river, mountain, ocean) splits the gene pool; the isolated halves diverge by selection and drift until they can no longer interbreed.
Correct Answer
Ageographic separation of a population
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