Question

2. Aquatic animals like fish excrete their wastes in
gaseous form as
(a) Oxygen
(b) Hydrogen
(c) Ammonia
(d) Nitrogen

Answer 1

Answer:

c) ammonia is the right answer

Answer 2

Answer:

(D)

Aquatic animals like fish perform the process of excretion depending on the availability of water. The nitrogenous food such as legumes are ingested by the fish and converted into cellular waste. It reacts with water to form ammonia gas that is released in the atmosphere through the excretory system