Question

Explain how the exchange of co2 and o2 occur in human being

Answer 1

The process of exchange of O2 and CO2 occurs in human being are called respiration.

First our nose in inheals oxygen . From the nose it goes to the lungs where hair like structures absorb the nutritions from the oxygen and send them back through nose as CO2 .this is called respiration in this way exchange of gases a course in human

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