Question

19. Which statement about epithelium is correct?

It traps dust, pollen, and other particles.
It is thin tissue that lines the alveoli
It closes the windpipe when swallowing
It warms and humidifies inhaled air

Answer 1

B. It is thin tissue that lines the alveoli.

Step-by-step explanation:

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Answer 2

It is thin tissue that lines the alveoli

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