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NEET2008ZoologyHuman Health and DiseasesActual

To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?

Options

  1. APhysical barriers
  2. BCytokine barriers
  3. CCellular barriers
  4. DPhysiological barriers

Correct answer

D. Physiological barriers

Step-by-step solution

Acid in stomach, saliva in mouth, tears from eyes all prevent microbial growth. They are part of innate immunity and grouped under physiological barriers.

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