The author's purpose for writing this magazine article is most likely to — a. tell a frightening story about electricity
b. describe the wildlife that lives along the Amazon River
c. explain how to listen to fish in the water
d describe the scientific work of Mary Hagedorn

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

the correct answer is:

a population changes in response to a change in the environment.

the correct answer is b

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