Question

Explain the methods of 1. Oxygen supply to the cells 2. Release of carbon dioxide to the atmosphere from the cells during the process of transportation in human.
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Answer 1

Answer:

1.oxygen is supplied to each and every cell of a body through blood vessels....

2. cells produce energy whenever we are in need... at that time of producing energy carbon dioxide is also produced so again it will come out in the process of respiration....

Hope it helps you...