Question

Select the group of animals adapted for ammonotelism, guanotelism and ureotelism respectively from the following.
A. Tadpole larva of frog, Spider, Pigeon
B. Scorpion, Turtle and Labeo
C. Catla, Penguin and Cat
D. Cobra, Cockroach and Bombay duck

Answer 1

Animals assimilate ammonia , urea , uric acid , carbon dioxide water and some ions either through metabolic means or by excess eating that is ingestion. The substances that are assimilated or accumulated inside the body have to be removed fully or partially . This process of elimination is called excretion.

Complete answer:
Ammonotelism: The process of excreting ammonia is called Ammonotelism. Many bony fishes, aquatic amphibians and aquatic insects are ammonotelic in nature.
Ureotelism :- Mammals, and almost all terrestrial amphibians and marine fishes mainly excrete urea and are called ureotelic animals. Excretion of urea is known as ureotelism
Guanotelism :- the process of excretion of guanines is known as guanotelism. It is possessed by organisms like spiders and penguins .
Now let us match this with given options :-
Tadpole larva of frog, Spider, Pigeon :- pigeon belongs to kingdom birds and birds excrete nitrogenous waste in the from of ornithuric acid. Thus they are not ureotelic.
Scorpion, Turtle and Labeo :- labeo is a bony fish and bony fishes excrete trimethyl oxide and not urea thus this option is not correct.
Catla, Penguin and Cat :- catla is a bony fish so excrete ammonia , penguin excrete guanines and cat excrete urea as it is a mammal . Thus this option is correct.

Cobra, Cockroach and Bombay duck :- cobra is a snake means reptiles so excrete uric acid and not ammonia , cockroach being insect excrete uric acid and bombay duck excrete ornithuric acid.

Thus, our required answer is C that is Catla, Penguin and Cat.

Note: Ammonia : is first metabolic waste of protein metabolism. Ammonia is produced in the liver due to what is commonly known as deamination. Ammonia is very toxic and requires large amount of water for its excretion
Urea : It is white crystalline solid produced in the liver . It is comparatively less toxic.