How does air reach every cell of human being?
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Answer:
air cannot pass through our body but air mix with blood and circulate in our body.
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Ans . All Cells in human being are not expose to environment or open air to complete cellular respiration .,,thus our body has a type of specialised organ system to send oxygen to all cells through the body ... The blood containing haemoglobin carries the oxygen from lungs and is pumped by heart to the whole body .....
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