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NVstudent NVstudent
wrote...
12 years ago
perhaps because on darkened trees they are less easily seen by moth-eating birds. As pollution abated, the light forms were favored because of:

a. selection
b. migration
c. mutation
d. genetic drift
e. bottleneck effect
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dashawn22dashawn22
wrote...
Posts: 6
Rep: 0 0
12 years ago
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