On the basis of nitrogenous metabolic waste the animals are of four types : (i) Ammonotelic Excreted ammonia, e.g., aquatic animals, bony fishes, frog, toad and crocodile, etc. (ii) Aminotelic Excreted amino acid, e.g., Mollusca and echinoderms. (iii) Ureotelic Excreted urea, e.g., frog, toad and mammals. (iv) Uricotelic Excreted uric acid, e.g., insects, land reptiles and birds.
NEET UG 2012 — Zoology Excretory Products and their Elimination
2012mcqmedium
Which one of the following options gives the correct categorisation of six animals according to the type of nitrogenous wastes (A, B, C), they give out? 
Official previous-year question
Held on 30 Apr 2012 · Verified 9 Jul 2026.
Options
- A
(a)
- B
(b)
- C
(c)
- D
(d)
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