Q. Which of the following is both osmoregulator as well as nitrogenous product?
A) $NH_{3}$
B) Urea
C) Uric acid
D) All of these
Explanation
Urea is both nitrogenous product as well as osmoregulator. It is the excretory product in man and mammals, $Ascaris,$ earthworm, fishes like sharks and string rays, etc.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.