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Between two related species, a reproductive barrier can be formed that would isolate them from one another. This prevents them from forming an offspring out of interbreeding. These barrier may be present either before or after the formation of a zygote. In the given problem, the behavioral differences that would prevent them from mating with one another is a prezygotic barrier.
In many species, both prezygotic and postzygotic barriers can cause reproductive isolation. Which of the following best describes how behavioral isolation can prevent two species from interbreeding?
A. Members of two species compete for the same territory and the same mates.
B. One species mates only in the winter, while the other species mates only in the fall.
C. The two species have different mating rituals that only attract mates within their own species.
D. When the two species produce offspring, the offspring do not survive to reach sexual maturity.
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Based on our data, we think this problem is relevant for Professor Riggs's class at AU.