Q. In which of the following segments of earthworm, septal nephridia is present?

A) 15-last
B) 8-15
C) 18-last
D) 15-17
Explanation

Septal nephridias, present on both the sides of the intersegmental septa from the segment is 15 to the last that opens into the intestine of earthworm’s excretory system

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.