Multiple Choice
In the southeastern U.S.,two species of wild lettuce (Lactuca) do not usually form hybrids,because they bloom at different seasons.The means of isolation appears to be
A) postzygotic and behavioral.
B) prezygotic and temporal.
C) prezygotic and geographical.
D) prezygotic and mechanical.
E) postzygotic and ecological.
Correct Answer:

Verified
Correct Answer:
Verified
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