Respuesta :
Answer:
D. the heart
Explanation: The heart is a complex muscle that consists of two pumps: one that pumps blood through pulmonary circulation to the lungs, and the other that pumps blood through systemic circulation to the rest of the body's tissues
Answer:
HEART
Explanation:
THE MAIN FUNCTION OF HEART IS TO PUMP BLOOD TO DIFFERENT PARTS OF OUR BODY.
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