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Directional Selection is exemplified by a decrease in dull coloring due to environmental changes.
Directional Selection is demonstrated by a decrease in dull coloring. This type of selection occurs when the environment changes and selects for phenotypes at one end of the existing variation spectrum. An example is the evolution of the peppered moth in England during the Industrial Revolution, where the light-colored moths became rare due to soot pollution darkening the trees, leading to an increase in the melanic form of the moth for better camouflage.
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