Nitrogenous waste products are eliminated mainly as :-a)Urea in tadpol...
Animals are categorised on the basis of their nitrogenous waste products. They are:
1. Ammonotelic animals are animals which excrete nitrogenous wastes as ammonia.
2. Ureotelic animals are animals which excrete nitrogenous wastes as urea.
3. Uricotelic animals are animals which excrete nitrogenous wastes as uric acid.
Hence, Tadpole is ammonotelic because it lives in water and has a large volume of water that is needed for the elimination of ammonia. It can eliminate ammonia was rapidly as it is formed, into the surrounding water.
Adult frog is ureotelic because urea is far less toxic than ammonia and can be concentrated in the urine and excreted at slower rate.
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Nitrogenous waste products are eliminated mainly as :-a)Urea in tadpol...
¶¶ Correct Option (b) ammonia in tadpole and urea in adult frog.
Explanation: Ammonia is the main nitrogenous waste. It is soluble in water and highly toxic. A large amount of water is required for its excretion. Tadpole is aquatic and lives in plenty of water so, nitrogenous wastes in tadpole are eliminated as ammonia. Frog being amphibious, excretes its nitrogenous wastes as urea.
Nitrogenous waste products are eliminated mainly as :-a)Urea in tadpol...
Option [b] becoz--->
As v know that Tadpole is the younger form of frog, which lives in water. Ammonia is released in organisms living in water due to its highly toxic nature.Thus, tadpole releases ammonia as nitrogenous waste.-----[WHERE AS]----- frog is an amphibian which can survive both on land as well as water.This is the reason for release of less toxic waste from frog in form of urea.
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