Which of the following organism excretes ammonia?

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Question

Which of the following organism excretes ammonia?

Options:

A . Humans

B . Birds

C . Lizards

D . Fishes

Answer: Option D
:
D
All the nitrogenous wastes in the fishes are converted into ammonia before it is excreted out into the water. This ammonia directly dissloves in the water. Birds and lizards excrete nitrogenous wastes as uric acid. The excretory product in humans is urea.

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