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Ronch [10]
2 years ago
6

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

Biology
1 answer:
allsm [11]2 years ago
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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—Explanation—
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taurus [48]

Hey there!

Option D would be correct.

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3 years ago
With respect to sensory changes in middle age, people commonly experience a(n) _______.
Alex787 [66]

The correct answer is A. Decline in vision

Explanation:

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