Which one of the following options gives the correct categorization

Home » Advanced Zoology » Excretory Products and their Elimination » Question

Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous wastes (A, B, C), they give out?

1. A-Ammonotelic B-Ureotelic C-Uricotelic
  Pigeon, Humans Aquatic Amphibia, Lizards Cockroach, Frog
2. A-Ammonotelic B-Ureotelic C-Uricotelic
  Frog, Lizards Aquatic Amphibia, Humans Cockroach, Pigeon
3. A-Ammonotelic B-Ureotelic C-Uricotelic
  Aquatic Amphibia Frog, Humans Pigeon, Lizards, Cockroach
4. A-Ammonotelic B-Ureotelic C-Uricotelic
  Aquatic Amphibia Cockroach, Humans Frog, Pigeon, Lizards

Correct Option: C

Those animals that excrete ammonia are called as ammonotelic, eg. aquatic amphibia. Those animals that excrete urea are called as ureotelic, eg. frog, humans.
Those animals that excrete uric acid are called as uricotelic, eg. pigeon, lizards, and cockroach.