Q. Setae helps in the locomotion of earthworm but is not present uniformaly in all the segments of the earthworm segments. Select among the following that represent setae
A) 1st segment
B) Last segment
C) Clitellar segment
D) All except those metioned in options (a), (b) and (c)
Explanation
Each segment of the earthworm’s body, except first, last and clitellum, bears a middle ring of small chitinous bristles, called setae. These setae are embedded in the epidermal pits in the middle of each segment and plays a major role in locomotion
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.