The lock-and-key fit of the genitalia of many male and female insects of the same species is an important part of ensuring reproductive success. Which of the following statements provides an explanation for the fit and shape of insect genitalia?
A. In order to achieve high reproductive
success males choose to have genitalia that
fit only into the reproductive tracts of females
from different species so that they can start
new species.
B. In order to be successful on land and
ensure fertilization, males choose genitalia
that only fit into female genitalia of the same
species.
C. Success in terrestrial environments was
increased because sperm were deposited
within a female of the same species and
increased the probability of fertilization.
D. Success in terrestrial environments was
increased because males who deposited
sperm within females helped to ensure
survival of the species once they had
colonized land.
C
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