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प्रश्न
Humans have innate immunity for protection against pathogens that may enter the gut along with food. What are the two barriers that protect the body from such pathogens?
उत्तर
Microbial pathogens enter the gut of humans along with food :
- Physical barriers : Mucus coating of the epithelium lining the gastrointestinal tract helps in trapping microbes entering our body.
- Physiological barriers : Acid in the stomach, saliva in the mouth prevent microbial growth.
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