Class 11 NEET Biology Breathing and Exchange of Gases

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Question : 53 of 65

Marks: +1, -0

In lungs, the air is separated from the venous blood through

(1997)

transitional epithelium + tunica externa of blood vessel
squamous epithelium + endothelium of blood vessel
squamous epithelium + tunica media of blood vessel
none of the above

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