11. How does gaseous exchange takes place at blood level (or) cellular level?(ASI
12 Explain the mechanism of gaseous exchange at branchiole level.(ASI)
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1.Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them.
2.The air in the bronchiole then pass into million of tiny air sacs called alveoli which are present at the end. ...
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