SkyQueenLayla
SkyQueenLayla SkyQueenLayla
  • 26-02-2017
  • Chemistry
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How are the lungs kept free of germs and dirt from the air?

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amelia18
amelia18 amelia18
  • 27-02-2017
Mucus found in the bronchial tubes collects dirt and germs that get into your lungs . Tiny hairs called cilia work to sweep out the debris collected to keep your lungs clean.
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