Question

Which one of the following options gives the correct categorisation of animals according to the type of nitrogenous waste they give out?

	Ammonotelic	Ureotelic	Uricotelic
(a)	Pigeon, humans	Aquatic amphibia, lizards	Cockroach frog
(b)	Frog, lizards	Aquatic amphibia humans	Cockroach pigeon
(c)	Aquatic animals	Frog, amphibia, humans	Pigeon, lizards, cockroach
(d)	Aquatic animals	Cockroach, amphibia, humans	Frog, pigeon, lizards

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (C)

Aquatic animals are ammonotelic as they excrete ammonia. Frog, amphibians and humans are ureotelic as they excrete urea. Pigeon, lizards and cockroach are uricotelic as they excrete uric acid