explain the mechanism of breathing for class 7
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Answer:
inhalation and exhalation in the process of breathing means take oxygen and get out the co2
Explanation:
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Answer:
in humans the breathing process takes place by taking in oxygen into body through lungs and expelling air rich in carbon dioxide out of our body.
Explanation:
nostil, nasal cavaty, trachea, bronchi, bronchiole and alveoli are ,main parts in this pricess
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