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  4. Two examples in which the nitrogenous wastes are excreted from body in the form of uric acid are

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Q. Two examples in which the nitrogenous wastes are excreted from body in the form of uric acid are

AIPMTAIPMT 1994Animal Kingdom

Solution:

Birds and lizards are uricotelic. Uricotelic animals are those that excrete nitrogenous waste in the form of uric acid. It is being insoluble in water, does not require water for its elimination. Frogs and cartilaginous fish are ureotelic, that is they excrete nitrogenous waste in the form of urea. The main excretory matter of insects is uric acid and of bony fish is ammonia (ammoniotelic). Molluscs may be ammoniotelic or uricotelic. Mammals are ureotelic (excretory matter is urea).