Question

Almost all aquatic animals excrete ammonia as nitrogenous waste. Which is wrong

• A. Ammonia is highly toxic s and requires elimination as and when formed
• B. Ammonia is easily soluble in water
• C. Ammonia is converted into less toxic form called urea
• D. Ammonia is released from body in gaseous state

Answer 1

The correct option is D Ammonia is released from body in gaseous state

Ammonia, is the universal excretory product for all kinds of aquatic animals, because of the following reasons:-

1. It is readily soluble in water and also needs large amount of its to dissolve.
2. It is highly toxic and the internal enviornment of the organisms and needs to be eliminated as it is formed.
3. It is converted into a less toxic product in aquatic animals like sharks, sting rays, semi-aquatic amphibians, aquatic or semi-aquatic reptiles and aquatic mammals.

So, the correct option is 'Ammonia is released from body in gaseous state'.