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Peppered moths are a great example of natural selection. Prior to the Industrial Revolution, the moths were predominantly light in color, which allowed them to blend in with the light-colored trees and lichens in their environment. But, as soot began spewing from factories, the trees became darker, the light-colored moths became easier for predatory birds to spot, and the darker moths increased in frequency because they had a higher survival rate. In recent years, factories have become cleaner, and less soot is released into the environment. What impact do you think this has had on the distribution of moth color in the population?

Dark and light colored moths now have equal frequencies.

Light colored moths are extinct.

Moths have shifted to a lighter color.

none of these