Q. Common feature in earthworm and cockroach is
A) Cuticle (exoskeleton)
B) Solid and ventral nerve cord
C) Nephridia
D) Malpighian tubules
Explanation
In earthworm as well as cockroach, a ventral nerve cord extends back along the midventral axis from the sub-pharyngeal ganglion.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.