Q.

__________ is an anatomical barrier.

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a

Interferon

b

Lysozyme

c

Mucus

d

Saliva

answer is D.

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Detailed Solution

Anatomical barriers are the physical barriers. Skin on our body is the main barrier which prevents entry of the micro-organisms. Mucus coating of the epithelium lining the respiratory, gastrointestinal and urogenital tracts also help in trapping microbes entering our body.

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__________ is an anatomical barrier.