What types of nitrogenous wastes are excreted by living organisms?

Q. What types of nitrogenous wastes are excreted by living organisms?
A. Ammonia
B. Uric acid
C. Urea
D. All of the above
Answer: All of the above

A. Ammonia
B. Uric acid
C. Urea
D. All of the above
Answer: All of the above