A - Acid in the stomach and saliva in the mou | vedclass

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(D) $1$. Physiological barriers include secretions like acid in the stomach,saliva in the mouth,and tears from the eyes,which prevent microbial growth

Vedclass · Accepted Answer

$A$ is correct,$R$ is incorrect.

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(D) $1$. Physiological barriers include secretions like acid in the stomach,saliva in the mouth,and tears from the eyes,which prevent microbial growth.$2$. Physical barriers are anatomical structures like the skin and the mucus coating of the epithelium lining the respiratory,gastrointestinal,and urogenital tracts.$3$. Therefore,statement $A$ is correct as acid and saliva are physiological barriers.$4$. Statement $R$ is incorrect because tears are also physiological barriers,not physical barriers.

$A$ - Acid in the stomach and saliva in the mouth are examples of physiological barriers.
$R$ - Tears from eyes are an example of a physical barrier.

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$A$ - Acid in the stomach and saliva in the mouth are examples of physiological barriers.$R$ - Tears from eyes are an example of a physical barrier.