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Excretion, in strict sense, is the process of:

A.	Removal of waste products of carbohydrate metabolism	B.	Removal of waste products of protein metabolism
C.	Removal of waste products of fat metabolism	D.	None of these

Amino acids are formed as waste products of protein metabolism in:

A.	Certain molluscs	B.	Certain echinoderms
C.	Both (a) & (b)	D.	None of these

Ammonia is formed as a result of deamination of amino acids in vertebrates and those which pass out urine in form of ammonium hydroxide are called:

A.	Ureotelic	B.	Uricotelic
C.	Ammonotelic	D.	Aminotelic

In which of these animals the ammonia formed primarily as a result of protein metabolism is converted to urea:

A.	Frog	B.	Rabbit
C.	Man	D.	All of these

In case of ureotelic animals:

A.	Rurine is passed out in form of amino acids	B.	Urine is passed out in form of solution of urea
C.	Urine is passed out in form of solution of ammonia	D.	Urine is passed out in none of these forms

Ammonia is the chief nitrogenous excretory material in which of the following animals:

A.	Rat	B.	Fowl
C.	Fresh water fishes	D.	Adult mosquito

Chief nitrogenous waste product present in the urine of frog is:

A.	Ammonia	B.	Urea
C.	Uric acid	D.	Allantion

Excretion of nitrogenous wastes mainly in form of uric acid in the birds is an example of:

A.	Conservation of heat	B.	Conservation of water
C.	Elimination of water	D.	Elimination of heat

Excretory substance is ammonia in:

A.	Camel	B.	Cartilagenous fishes
C.	Whale	D.	Fresh water fishes

10.

Aquatic animals are mostly ammonotelic because:

A.	Ammonia is useful to check inflow of water within the body	B.	Excretion of this type requires plenty of water which is available of animals
C.	Both (a) & (b)	D.	None of these