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Grade upto college level Zoology

Which one of the following acts as a physiological barrier to the entry of microorganisms in human body? 1. Skin 2. Epithelium of Urogenial tract 3. Tears 4. Monocytes

Profile image of Amit Saxena
12 Years agoGrade upto college level
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1 Answer

Profile image of Jitender Pal
12 Years ago
Sol: Physiological barriers to the entry of micro-organisms in human body are tears in eyes, saliva in mouth and HCl in stomach. Answer: (3)

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