Ncert Exercises & Solutions

Which of the following pairs is wrong?

1. Uricotelic ......... Birds

2. Ureotelic ......... Insects

3. Ammonotelic ......... Tadpole

4. Ureotelic .......... Elephant

(b) Insects excrete nitrogenous wastesas uric acid hence are uricotelic.

Ureotelic animals involve mammals, adult amphibians and elasmobranchs.
Whereas, birds are uricotelic (correct option) and tadpoles excretion ammonia. Elephant being a mammal is ureotelic.

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