One very special feature in the earthworm (Ph | vedclass

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(B) : In $Pheretima$,the intestine follows the stomach. It is a long,wide,and thin-walled tube extending from the $15^{th}$ segment to the last. The m

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the typhlosole greatly increases the effective absorption area of the digested food in the intestine

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(B) : In $Pheretima$,the intestine follows the stomach. It is a long,wide,and thin-walled tube extending from the $15^{th}$ segment to the last. The middle part of the intestine,located between the $27^{th}$ segment and the $23-25$ segments in front of the anus,is characterized by the presence of a highly glandular and vascular longitudinal ridge. This ridge arises as a median ingrowth of the dorsal wall of the intestinal cavity and is called the typhlosole. The typhlosole significantly increases the effective surface area for the absorption of digested food in the intestine.

One very special feature in the earthworm $(Pheretima)$ is that

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