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When a white insect lands on the bark of a white birch tree its light color has a high adaptive value. If the birch trees become covered with black soot then the white color of this type of insect wou?
Wiki User
∙ 9y ago
1. retain its adaptive value
2. Increase in adaptive value
3. Mutate to a darker color
4. decrease in adaptive value
Wiki User
∙ 9y ago
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