[CIM Reviews]

9. In peppered moths, there are 2 color patterns which are found within any population. These are either 1) dark gray with blackish spots on the wings or 2) white with black spots on the wings. Both color forms live on the bark of trees.

The forest that they live in has many birch trees, which have white bark with black splotches. Which color form of moth will have a greater chance to survive and pass its genes for body coloration on to its offspring?

a) the gray moths that have black spots on the wings.

b) the white moths that have black spots on the wings.

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