2 years ago

1. What changes occur, in reference to the circulatory system, when you exercise?

1 answer:

7 0

Answer:

Exercise causes the heart to pump blood into the circulation more efficiently as a result of more forceful and efficient myocardial contractions, increased perfusion of tissues and organs with blood, and increased oxygen delivery.

Explanation:

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$\bold{ANSWER:}$

Last option: Preserve an ecosystem

$\bold{EXPLANATIONS:}$

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Answer:

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Explanation:

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