in which part of the respiratory system does exchange of oxygen and carbon dioxide take place
A. nasal cavity
B.pharynx
C. lungs
D.trachea
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in which part of the respiratory system does exchange of oxygen and carbon dioxide take place
A. nasal cavity
B.pharynx
C. lungs
D.trachea
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Answer:
C. Lungs
Explanation:
The exchange of oxygen and carbon dioxide takes place in the lungs because the lungs inside have millions of alveoli.