Asked by daniel
Which of the following could result in speciation from biogeographic isolation?
the isolation of two populations of the same species
the isolation of two individuals of the same species
the isolation of two populations of different species
the isolation of two individuals of different species
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The isolation of two populations of the same species.
Reason: Biogeographic (geographic) isolation prevents gene flow between populations of the same species, allowing divergence by drift and selection that can lead to speciation. Isolating single individuals normally can't produce a reproductively independent population (unless they found a new population), and isolating already different species doesn't create new species.
Reason: Biogeographic (geographic) isolation prevents gene flow between populations of the same species, allowing divergence by drift and selection that can lead to speciation. Isolating single individuals normally can't produce a reproductively independent population (unless they found a new population), and isolating already different species doesn't create new species.
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