Question

the 10% rule of ecosystems says that only 10% of the energy is passed on to the next trophic level. what happens to the rest of the energy? it gets released into the environment as heat. we dont know what happens to it. it goes back into plants.

Explanation:

In ecosystems, when energy is transferred between trophic levels, the 10% rule applies. Organisms use energy for metabolic processes like respiration, and during these processes, energy is released as heat into the environment. The option "We don't know what happens to it" is incorrect as the fate of the remaining energy is known. The option "It goes back into plants" is also incorrect because energy flow in ecosystems is unidirectional and doesn't cycle back to plants in that way. So the correct option is the one stating it gets released as heat.

Answer:

It gets released into the environment as heat.