Q. In earthworm, the characteristic internal median fold of dorsal wall of the intestine called typhlosole is present in
A) 5 to 9 segments
B) 9 to 14 segments
C) 26 to 35 segments
D) 15 to last segment
Explanation
Typhlosolar region in earthworm is from 27 segments onwards and continue upto last 23-25 segments in front of anus. Typhlosole increases the absorptive surface area.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.