Question

In earthworm, typhlosole occurs between

• A. 20-90 segments
• B. 26-95 segments
• C. 20-95 segments
• D. 21-100 segments

Answer 1

The correct option is B 26-95 segments

Typhlosole are infoldings in the mid-dorsal wall of the intestine. This increases the area of absorption in the intestine. It is present in the 26th-95th segments in earthworms. The typhlosole is absent in the 23rd to 25th segments posteriorly.