Question

Aquatic animals generally are ammonotelic in nature whereas terrestrial forms are not. Comment.

Answer 1

Explanation

• Ammonia is the most toxic form of nitrogenous waste, hence it cannot be stored in the body.
• It also requires a large amount of water to eliminate it.
• Since the aquatic animals have large availability of water it is disposed of as ammonia.
• Since terrestrial animals have less availability of water, they have evolved to conserve water.
• Ammonia is converted into urea, which is comparatively less toxic and requires less quantities of water to discharge.