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Home Q & A Board Biology-Related Homework Help General Biology
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tyressjones tyressjones
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7 years ago
The cells that line the human respiratory passages secrete
A) mucus.
B) blood.
C) water.
D) hormones.
E) enzymes.
Textbook 
Biology: Life on Earth

Biology: Life on Earth


Edition: 10th
Authors:
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CellarCellar
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7 years ago
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tyressjones Author
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#2
6 years ago
Yes! Correct again Slight Smile
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