Home › Bihar Board Class 12 (Science) › Biology › Human Health and Disease › The mucus coating lining the respiratory tract i…
The mucus coating lining the respiratory tract is which kind of barrier?
ACellular
BCytokine
CPhysical
DPhysiological
Answer & Solution
Correct answer: C. Physical
Along with the skin, mucus on the epithelium traps microbes and counts as a physical barrier.
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