Which of the following organism excretes ammonia?

Humans

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Birds

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Lizards

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Fishes

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Solution

The correct option is D Fishes
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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\begin{matrix} A & B & C A m m o n o t e l i c & U r e o t e l i c & U r i c o t e l i c (a) & P i g e o n s, H u m a n s & A q u a t i c A m p h i b i a, L i z a r d s & C o c k r o a c h, F r o g (b) & F r o g, l i z a r d s & A q u a t i c A m p h i b i a, H u m a n s & C o c r o a c h, P i g e o n (c) & A q u a t i c A m p h i b i a & F r o g, H u m a n s & P i g e o n, L i z a r d s, C o c k r o a c h (d) & A q u a t i c A m p h i b i a & C o c k r o a c h, H u m a n s & F r o g, P i g e o n, L i z a r d s \end{matrix}

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Which of the following organism excretes ammonia?

The correct option is D Fishes 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.

The correct option is D Fishes
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.