16. Most aquatic animals excrete ammonia, while land animals excrete urea or uric acid. What is the most likely explanation for the difference?
A. land animals cannot afford the energy needed to make ammonia
B. they have different diets.
C. ammonia is very toxic and it takes lots of water to dilute it.
D. fish need to get rid of ammonia, but land animals need it to live
E. land animals can get the extra energy needed to make urea or uric acid.

It would be C

Explanation:

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

a. by using fur or clothes to trap heat energy near the body