Question

An example of natural selection is the tail of a male peacock. The females of the species choose mates based on the colors of the males’ tail feathers. If females begin using different criteria than feather color when they choose mates, what would most likely happen to the tails of peacocks over time?

A. increased variation in tail feather color because the selection pressure has been relieved
B. increased variation in tail feather color because the peacocks try different ways to impress the females
C. decreased variation in tail feather color because no form of the trait is advantageous
D. decreased variation in tail feather color because the only reason for variation was selection pressure

Answer 1

The answer is D .

As the species is formed and individuals are selected on the baises of the favourable characters.