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What is the characteristic feature of the intestine of an earthworm?

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in Biology – Class 11 by (272k points)
What is the characteristic feature of the intestine of an earthworm?

(a) Setae

(b) Clitellum

(c) Glans

(d) Typhlosole

I got this question in an internship interview.

This key question is from Animals topic in portion Structural Organisations in Animals of Biology – Class 11

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The correct option is (d) Typhlosole

The best I can explain: The characteristic feature of the intestine of an earthworm is the presence of internal median fold of dorsal wall called typhlosole. Typhlosole helps in increasing the effective area of absorption for food and minerals. These structures are present after the 26^th segment except for the last 23^rd-25^th segments.

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