Changes in DNA are known as mutations and can sometimes produce beneficial changes in populations. A mutant form of the normally light-colored peppered moth is dark colored. The dark-colored moth blends in with soot-covered trees in heavily polluted areas. Why would the dark-colored mutation be beneficial in a polluted area?

A.
They have a longer life span than light-colored moths.
B.
They cannot be seen well by predators.
C.
They taste bad to most of their prey.
D.
They produce more young than do light-colored moths.

1 answer

B. They cannot be seen well by predators.