what actually enters each cell ; artery ,vein or capillary
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blood capillary
i think so...
by the way ask ur question full pledgedly ...
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Answer:
The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart.
Explanation:
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