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Fofino [41]
3 years ago
13

Numerous structures in the human body have evolved to maximize

Biology
1 answer:
PIT_PIT [208]3 years ago
3 0

Answer:

Respiration begins at the nose or mouth, where oxygenated air is brought in before moving down the pharynx, larynx, and the trachea. The trachea branches into two bronchi, each leading into a lung. Each bronchus divides into smaller bronchi, and again into even smaller tubes called bronchioles.

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