Natural Selection Has Favored the Dark Form of the Peppered

question 4

Multiple Choice

Natural selection has favored the dark form of the peppered moth in areas subject to severe air pollution,perhaps because on darkened trees,moth-eating birds see them less easily.As pollution abated,the light forms increased in the population because

• A)light moths had lower fitness than dark moths.
• B)light moths were able to produce more offspring than dark moths.
• C)light moths were more genetically variable than dark moths.
• D)birds ate more light moths.

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