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Start the planThe peppered moth avoids predators by blending into its background, typically the bark of trees. In the late nineteenth century, those peppered moths with the lightest pigmentation had the greatest contrast with their backgrounds, and therefore were the most likely to be seen and eaten by predators. It follows, then, that the darkest peppered moths were the least likely to be seen and eaten.
Which one of the following most accurately describes a flaw in the reasoning of the argument?
(A) The argument overlooks the possibility that light peppered moths had more predators than dark peppered moths.
(B) The argument takes for granted that peppered moths are able to control the degree to which they blend into their backgrounds.
(C) The argument presumes, without providing justification, that all peppered moths with the same coloring had the same likelihood of being seen and eaten by a predator.
(D) The argument overlooks the possibility that there were peppered moths of intermediate color that contrasted less with their backgrounds than the darkest peppered moths did.
(E) The argument presumes, without providing justification, that the only defense mechanism available to peppered moths was to blend into their backgrounds.
Which one of the following most accurately describes a flaw in the reasoning of the argument?
(A) The argument overlooks the possibility that light peppered moths had more predators than dark peppered moths.
(B) The argument takes for granted that peppered moths are able to control the degree to which they blend into their backgrounds.
(C) The argument presumes, without providing justification, that all peppered moths with the same coloring had the same likelihood of being seen and eaten by a predator.
(D) The argument overlooks the possibility that there were peppered moths of intermediate color that contrasted less with their backgrounds than the darkest peppered moths did.
(E) The argument presumes, without providing justification, that the only defense mechanism available to peppered moths was to blend into their backgrounds.
