Many male insects have specific structures (intromittent organs) that allow transfer of sperm internally to a female's reproductive tract

These structures have a specific morphology that
only fits into a female's reproductive tract of the same species, and results in internal
fertilization. Having the lock-and-key fit also provides a
A. pre-zygotic isolating mechanism.
B. post-zygotic isolating mechanism.


A

Biology & Microbiology

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