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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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Respuesta :

kritika3375

Answer:

A. Blood is pushed through vessels

Explanation:

Heart muscles contract and relax. The most important effect of this action on the human body is Blood is pushed through vessels.

Hope it will help :)❤

Answer:

A. Blood is pushed through vessels.

hope this answer helps you.....

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