Most of the energy within an ecosystem is lost?

Question

a. when organisms disperse.

b. when organisms die.

c. as a result of metabolism.

d. by organisms at the top of the food web.

e. by herbivores.

Answer 1

C is correct.

When organism disperse, energy follows.

When the organism dies, the decomposers would "return" the energy.

Organisms at the food web has the most energy content.

Herbivores are the primary consumer and their loss of energy is also thrugh metabolism. The answer is not this because we also have other consumers.

Answer 2

As a result of metabolism. The heat, CO2 etc.. that is given off is huge. For example, you give off more CO2 than your car!