Q. The principal role of setae in earthworm is
A) Respiration
B) Excretion
C) Locomotion
D) Assimilation
Explanation
The principal role of setae is in locomotion. They aids the earthworm in climbing out of the burrows
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.