Which is the first line of defense in the hum | vedclass

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(A) The human body possesses an innate immunity system that acts as the first line of defense to prevent the entry of pathogens.This system includes p

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Skin and mucous membranes

Vedclass · Answer

(A) The human body possesses an innate immunity system that acts as the first line of defense to prevent the entry of pathogens.This system includes physical and physiological barriers.Skin and mucous membranes lining the respiratory,gastrointestinal,and urogenital tracts are the primary physical barriers that trap microorganisms and prevent their entry into the body.Therefore,skin and mucous membranes constitute the first line of defense.

Which is the first line of defense in the human body?

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