Biology - Excretory Products and their Elimination Question with Solution | TestHub

Ammonia is a highly toxic nitrogenous waste that requires a large amount of water for its elimination. Therefore, ammonotelism is primarily observed in aquatic animals.

Larval amphibians, such as tadpoles, are aquatic and excrete ammonia as their primary nitrogenous waste.

Cartilaginous fishes are ureotelic, as they retain urea in their blood to maintain osmotic balance with seawater.

Mammals, including camels and whales, are ureotelic and excrete urea.

Answer: Larval amphibians