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(A) The toxicity of nitrogenous wastes varies significantly. Ammonia is the most toxic form and requires a large amount of water for its elimination.

Vedclass · Accepted Answer

Ammonia > Urea > Uric acid

Vedclass · Answer

(A) The toxicity of nitrogenous wastes varies significantly. Ammonia is the most toxic form and requires a large amount of water for its elimination. Urea is less toxic than ammonia and requires less water for excretion. Uric acid is the least toxic form and can be excreted in the form of a pellet or paste with minimal water loss. Therefore,the order of toxicity is: Ammonia > Urea > Uric acid.

$a$. Bony fish	$1$. Crustaceans
$b$. Terrestrial amphibian	$2$. Ammonotelic
$c$. Land snails	$3$. Ureotelic
$d$. Prawn	$4$. Uricotelic

Select the correct option regarding the toxicity of nitrogenous wastes.

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Which animals excrete nitrogenous wastes as uric acid in the form of pellet or paste with a minimum loss of water?

Match the following and select the correct option:
$a$. Bony fish $1$. Crustaceans
$b$. Terrestrial amphibian $2$. Ammonotelic
$c$. Land snails $3$. Ureotelic
$d$. Prawn $4$. Uricotelic

In ureotelic animals,where does the conversion of ammonia into urea take place?

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