Problem: Why did industrial melanism in the peppered moth, Biston betularia, help convince researchers that the intensity of natural selection can be very strong?a) The dark-colored allele increased in frequency very rapidly in multiple populations and later decreased rapidly after the environment changed.b) The dark-colored morph drove the light-colored morph to extinction.c) The moth population exploded, covering England with moths during the Industrial Revolution.d) Birds were unable to prey on the moths once they acquired their color adaptations.e) Natural selection maintained constant proportions of the color alleles in the population, despite rapid environmental change brought about by the Industrial Revolution.

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Peppered Moth Evolution: Prior to the Industrial Revolution, white-bodied moths camouflaged well with light-bodied trees. During the Industrial Revolution, trees became darkened and black-bodied moths are now better camouflaged by trees, leading to predation of white-bodied moths. This led to an increase in the population of black-bodied moths.

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Why did industrial melanism in the peppered moth, Biston betularia, help convince researchers that the intensity of natural selection can be very strong?

a) The dark-colored allele increased in frequency very rapidly in multiple populations and later decreased rapidly after the environment changed.

b) The dark-colored morph drove the light-colored morph to extinction.

c) The moth population exploded, covering England with moths during the Industrial Revolution.

d) Birds were unable to prey on the moths once they acquired their color adaptations.

e) Natural selection maintained constant proportions of the color alleles in the population, despite rapid environmental change brought about by the Industrial Revolution.