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प्रश्न
Which of the following acts as a physiological barrier to the entry of microorganisms into the human body?
विकल्प
Tears in eyes
Monocytes
Skin
Epithelium of urogenital tract
MCQ
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उत्तर
Tears in eyes
Explanation:
Tears in the eyes, saliva in the lips, and HCI in the stomach are all physiological barriers against microorganisms entering the human body.
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