Question

All mammals excrete nitrogen in the form of uric acid.

• A. True
• B. False

Answer 1

The correct option is B False

Excretion:

1. It can be defined as the expulsion or removal of harmful wastes from the body of living organisms.
2. The nitrogenous wastes which are excreted by living organisms are urea, uric acid, ammonia, creatinine, etc.
3. Mammals are the organisms that have backbones, and mammary glands for feeding their young ones. For example, humans.
4. Uric acid is a nitrogenous waste that is released by uricotelic organisms such as birds, reptiles, and other terrestrial organisms.
5. Mammals are ureotelic i.e they release a nitrogenous waste called urea in their urine.

Final answer: Hence, the given statement is false.