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hram777 [196]
3 years ago
7

Cardio exercise keeps that all-important muscle—the ________—strong by forcing it to pump blood and oxygen more quickly througho

ut the body.
Group of answer choices

A. biceps

B. heart

C. stomach

D. liver
Physics
1 answer:
fomenos3 years ago
3 0

Answer:

Heart

Explanation:

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