What did the peppered moths signify in evolution? Human behavior is the main driver behind artificial selection.

The environment always has a detrimental effect on organisms.

Environmental factors can change which organism is best suited for survival.

Organisms are constantly changing, but they're only driven by internal changes.

The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. The frequency of dark-coloured moths increased at that time, an example of industrial melanism.

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any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.