The fossil record shows that the average size of black bears was large during cold glacial periods and got smaller during warmer time periods. What is this an example of? a. directional selection b. disruptive selection c. ecosystem selection d. stabilizing selection

Question

Slinky

Biology

23 September, 02:29

The fossil record shows that the average size of black bears was large during cold glacial periods and got smaller during warmer time periods. What is this an example of? a. directional selection b. disruptive selection c. ecosystem selection d. stabilizing selection

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Answers (2)

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Athena · Answer 1

directional selection

Explanation:

Based on the information provided within the question it can be said that this scenario is describing the term known as directional selection. This term refers to a type of natural selection in which a certain characteristic of the species moves to one extreme as opposed to another. Which in this case refers to the bears size.

Ashlee · Answer 2

Based on the information provided within the question it can be said that this scenario is describing the term known as directional selection. This term refers to a type of natural selection in which a certain characteristic of the species moves to one extreme as opposed to another. Which in this case refers to the bears size.