Question

The internal median fold of the dorsal wall of intestine called typhlosole is a characteristic feature of an earthworm. Where is it located?

• A. Between the segments 5 and 9
• B. From the segments 26 to 95
• C. Between segments 9 and 15
• D. From the 35th segment till the last segment

Answer 1

The correct option is B From the segments 26 to 95

Typhlosole is an internal fold of the dorsal wall in earthworm. Typhlosole is present between the 26th-95th segments. Absent in the last 23 to 25 segments. The folded portion increases the surface area for the absorption of food in the intestine of earthworm.