why we require a transport system in our body
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We need a transport system to deliver oxygen, nutrients and other substances to all our body cells, and take away waste products from them. ... The deoxygenated blood returns to the heart from the body in the vena cava (a vein), the heart pumps is to the lungs to get rid of the carbon dioxide
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Explanation:
We need a transport system to deliver oxygen, nutrients and other substances to all our body cells, and take away waste products from them. ... The deoxygenated blood returns to the heart from the body in the vena cava (a vein), the heart pumps is to the lungs to get rid of the carbon dioxide
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