Q. Nephridia in Pheretima are formed from
A) Mesenchyme
B) Endoderm
C) Mesoderm
D) Ectoderm
Explanation
In Pheretima, nephridia are excretory organs. These are found in all body segments except the first two. These are originated from ectoderm.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.