AP Biologyeasymcq1 pt

The peppered moth in England provides evidence for natural selection because

A.D) the change in moth populations was a result of a genetic drift caused by the introduction of non-native species.

B.A) the increase in dark-colored moths was a result of a temperature change, leading to a preference for dark-colored wings.

C.B) the industrial revolution caused a massive decrease in the moth population, allowing for natural recolonization.

D.C) dark-colored moths had a higher survival rate due to their ability to blend in with the dark-colored tree bark in urban areas.

Explanation

Core Concept

Natural selection is a process where individuals with traits better suited to their environment are more likely to survive and reproduce. The peppered moth example is a classic case of natural selection in action. Before the industrial revolution, the moths had light-colored wings, allowing them to blend in with the light-colored tree bark. However, with the increase in air pollution, the tree bark became darkened by soot. The dark-colored moths, which had a genetic variation for dark-colored wings, were better suited to their environment and had a higher survival rate, leading to an increase in their population. This is an example of natural selection favoring the dark-colored trait.

Correct Answer

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