Question

Conservation of water is possible in this mode of excretion

• A. Urea
• B. Uric acid
• C. Ammonia
• D. Guanine

Answer 1

The correct option is B Uric acid

Excretion of uric acid is known as uricotelism. Animals which live in dry conditions have to conserve water in their bodies. Therefore, they synthesize crystals of uric acid from their ammonia. Uric acid crystals are non-toxic and almost insoluble in water. Reptiles, birds, land snails and insects excrete nitrogenous wastes as uric acid in the form of a pellet or paste with a minimum loss of water and are called uricotelic animals.

So, the correct answer is 'Uric acid'.