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The trachea is lined with ciliated cells and mucus producing:

AGobbling cells
BGoblin cells
CGobstone cells
DGoblet cells
Answer & Solution
Correct answer: D. Goblet cells
1. Mucus must be made somewhere. 2. Specialised cells in the lining do it. 3. Those are goblet cells. _Source: OpenStax Biology 2e, Chapter 39, The Respiratory System._
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