Biology, 16.10.2020 22:01 nicolecadet941

Two subgroups of a population separated by a river are rejoined when a drought causes the river to run dry. Assuming that speciation has not yet
occurred, what is true about the two subgroups?
A. The likelihood that speciation will be completed will decrease.
B. New traits that resulted from mutation will not flow between the
subgroups.
C. The two subgroups will still be reproductively isolated and unable
to mate.
D. Speciation will speed up since there will be more competition
between the subgroups.

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Two subgroups of a population separated by a river are rejoined when a drought causes the river to...