asked 130k views
3 votes
Which describes how physical activity benefits the cardiovascular system?

A. It reduces the chance of developing osteoporosis.

B. It increases heart strength.

C. It decreases the number of capillaries in the muscles.

D. It raises blood cholesterol.

1 Answer

5 votes

B the cardiovascular system is closed system of the heart and blood vessels

answered
User Saeed Vaziry
by
8.9k points
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