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Question: How did the researcher Henry Bernard Davis Kettlewell test his
hypothesis concerning the adaptive…


How did the researcher Henry Bernard Davis Kettlewell test his
hypothesis concerning the adaptive value of dark or light
coloration in moths (in England)?

He timed undergraduates using tweezers as they plucked moths off
of trees.

He tested how many light or dark colored moths were plucked from
trees by birds in different locations.

He performed a genetic test-cross with dark and light moths.

He created a computer simulation of moth color and
predation.

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