Question

entry of air that is celiated

Answer 1

Answer:

Air enters the respiratory system through the nose or the mouth.Tiny hairs called cilia protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.

Answer 2

Answer:

Air enters the respiratory system through the nose or the mouth. Tiny hairs called cilia (SIL-ee-uh) protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.

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