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प्रश्न
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in –
विकल्प
veins
arteries
heart
capillaries
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उत्तर
capillaries
Explanation:
Capillaries have thin walls, they pick up carbon dioxide and other wastes from every cell and pass them into the alveoli and kidneys respectively. They also pick up oxygen and digested food from the alveoli and small intestine respectively and pass them to each and everybody cell for cellular respiration.
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