Which of the following is a physiological bar | vedclass

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(C) Physiological barriers are part of the innate immunity that prevent microbial growth through chemical or physical conditions.$1$. Skin is a physic

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Tears

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(C) Physiological barriers are part of the innate immunity that prevent microbial growth through chemical or physical conditions.$1$. Skin is a physical barrier.$2$. Macrophages are cellular barriers.$3$. Tears (from eyes) and saliva (in the mouth) are physiological barriers because they contain enzymes like lysozyme that prevent microbial growth.$4$. Mucus coating of the urogenital tract is a physical barrier.Therefore,tears are the correct example of a physiological barrier.

Which of the following is a physiological barrier?

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