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MaRussiya [10]
3 years ago
15

Air from the outside environment first enters the respiratory system through the _____.

Biology
2 answers:
Lostsunrise [7]3 years ago
6 0

Answer:

nostrils. its obvious :3

Explanation:

kramer3 years ago
5 0
Air from the outside environment first enters the respiratory system through the nostrils. and then after the nostrils it will actually go through your mouth, and then it will go to your pharynx, and then go through the trace and then the larynx, after that it will pass by the bronchial tubes and then the right lung and last is the left lung.
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4 years ago
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