Excretory Products And Their Elimination Question 17

Question: Most aquatic animals excrete ammonia, while land animals excrete urea or uric acid. What is the most likely explanation for this difference?

Options:

A) They have different diets.

B) Land animals can get the energy needed to make urea or uric acid.

C) Ammonia is very toxic, and it takes lots of water to dilute it.

D) Land animals cannot afford the energy needed to make ammonia.

Show Answer

Answer:

Correct Answer: C

Solution:

[c] The animal does not expend energy forming ammonia, but it is highly toxic and must be diluted in large amounts of water.