Heart muscles contract and relax. What is the most important effect of
this action on the human body?
O A. Blood is pushed through vessels.
B. The heart beats rhythmically.
C. The heart gets needed exercise.
D. Energy is generated for other organs.
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Answer:
C.THE HEART GETS NEEDED WXERCISE
Explanation:
PAKI HEART AT FOLLOW PO AT BRAINLIEST NA LANG RIN PO