A large population of mice is isolated on an island. There are two varieties of the mice, brown and gray. Their fur colors closely match the gray rock outcrops and brown soils of the island. Hawks are their main predators. This situation most likely reflects the outcome of __________. stabilizing natural selection directional natural selection disruptive natural selection genetic drift
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Stabilizing natural selection: This type of selection favors the average individuals in a population and reduces variation. In this case, we have two distinct varieties of mice, so it doesn't seem to fit. Show more…
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A population of rodents settles on the shore of an island close to the Arctic Circle. The landscape consists mainly of rocks. If the individuals are too large, they cannot hide in crevices to escape hawks. On the other hand, small bodies do not maintain internal temperature in cold weather. Show diagrammatically the change in the population and explain what selective pressures took place. a. directional selection b. stabilizing selection c. disruptive selection d. diversifying selection
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