Q. Primary or main excretory organ in humans is
A) Skin
B) Lung
C) Kidney
D) Spleen
Explanation
Primary excretory organs are specialised for carrying out exclusive function of excretion. $e.g.,$ kidney
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.