7. "Selection Strength" refers to the amount of pressure the environment puts on an organism to change. It is measured in the survival rates of those organisms that have (or do not have) a particular trait. The greater the strength of selection, the faster evolution will occur. How could biologists in a controlled environment increase the speed of evolution in the stickleback fish. Explain your answer.

Question

Biology

Francesca Jacobson

1 April, 02:09

7. "Selection Strength" refers to the amount of pressure the environment puts on an organism to change. It is measured in the survival rates of those organisms that have (or do not have) a particular trait. The greater the strength of selection, the faster evolution will occur. How could biologists in a controlled environment increase the speed of evolution in the stickleback fish. Explain your answer.

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Answers (1)

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Adelaide Norman · Answer 1

The biologists could alter predation regimes by adding different predators and different habitat structures in the controlled environment.

Explanation:

Oceanic sticklebacks have armored plates and defensive spines for protection from predators. While the freshwater ones don't.