The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?
A. Dark moth
B. Light moth
C. Both will be equally successful
D. Neither will be successful
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Natural selection is best described as
A. a change in an organism in response to a need of that organism
B. a process of nearly constant improvement that leads to an organism that is nearly perfect
C. differences in survival rates as a result of different inherited characteristics
D. inheritance of characteristics acquired during the life of an organism
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