Question

Uricotelism is found in:

• A. Fishes and fresh water protozoans
• B. Birds, reptiles and insects
• C. Frogs and toads
• D. Mammals and birds

Answer 1

The correct option is B Birds, reptiles and insects

Elimination of uric acid as the main nitrogenous waste material is called uricotelism. Animals showing uricotelism are called uricotelic animals.
It is a common method seen in birds, land reptiles, insects, land snails and some land crustaceans.

Ammonotelism is the type of excretion in which ammonia is the main nitrogenous waste material. Such animals are called ammonotetic.
It is found in aquatic animal groups like sponges, coelentrates, crustaceans, echinoderms, bony fish, tadpole larvae and salamander.

Ureotelism is a type of excretion where urea is the main nitrogenous waste material. Animals showing ureotelism are called ureotelic animals. ​
​​​​​​It is commonly found in man, whales, seals, desert mammals like kangaroo rats, camels, toads, frogs, cartilagenous fishes, aquatic and semi aquatic reptiles like alligator, terrapins and turtles.