Many insects have a “lock and key” type of genitalia in which the male reproductive structures will only fit into the reproductive structures of females of the same species so that even very similar species will not be able to mate with one another. What would expect to see if you investigated the details of fertilization in one of these species?
a. species specific recognition proteins on the egg and a fast block to polyspermy
b. species specific recognition proteins on the egg and no fast block to polyspermy
c. no species specific recognition proteins on the egg and a fast block to polyspermy
d. no species specific recognition proteins on the egg and no fast block to polyspermy
e. asexual reproduction
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