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Which of the following is not a benefit of improved cardio-respiratory fitness?

A. Diaphragm grows stronger.
B. Faster post-exercise recovery time.
C. Lungs expand more easily.
D. Arteries grow smaller.​

User Illvm
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1 Answer

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The answer is D. Arteries grow smaller. The reason is because arteries don’t grow smaller. Arteries can have blood pumped for efficiently but they don’t become smaller.
User David Addoteye
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