write the functions of heart.?
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to pump blood so that it may circulate to the whole body
to separate pure and impure blood
to separate pure and impure blood
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Solution: Functions of the heart:
(i) It helps in the circulation of oxygen rich blood throughout the body by the pumping.
(ii) It receives oxygenated blood from the lungs.
(iii) It also pumps back the blood carrying carbon dioxide to the lungs.
(iv) It shows rhythmic contraction and relaxation for movement of blood.
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