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In the respiratory system, epithelial cells
remove carbon dioxide from the body.
act as a passageway by which air moves into the lungs.
secrete fluids that protect the inside of the trachea.
transfer oxygen to the cells in the body.

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The answer is that Epithelial cells act as a passageway in which the air moves into the lungs. The epithelial cells in the respiratory system would serve as a leak proof barrier that do transports, filters as well as conditions the air one is breathing.

Answer:

act as a passageway in which the air moves into the lungs.

Explanation:

ed

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