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(B) The structure labelled $X$ represents the villi in the small intestine.$1$. The inner lining of the small intestine has numerous finger-like proje

Vedclass · Accepted Answer

They provide a large surface area for absorption.

Vedclass · Answer

(B) The structure labelled $X$ represents the villi in the small intestine.$1$. The inner lining of the small intestine has numerous finger-like projections called villi.$2$. These villi significantly increase the surface area of the inner wall of the small intestine.$3$. A larger surface area allows for more efficient and rapid absorption of digested food materials into the bloodstream.Therefore, the correct option is $(B)$.

The diagram represents a cross-section of the small intestine. What is the role of the structure labelled $X$?

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