Industrial melanism involving the peppered moths (Biston sp.) is cited as an example of natural selection that has been observed in the last one hundred years.Recall that the peppered moth exhibits two distinct morphological types with dark and light colored wings.Which of the following statements about changes in these two types of moths as a result of industrial melanism is true?

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In nonpolluted forests, the light-colored moths are better camouflaged against the lichen-covered trees, making the dark forms more visible and thus more likely to be preyed upon by birds.

Industrial Melanism Involving the Peppered Moths (Biston Sp