Some organisms in an ecosystem obtain energy and nutrients from plants. these organisms store the energy in their bodies. what happens to the energy in the ecosystem when the organisms die? a. some of the energy is used by decomposers, and some of the energy is released into the environment as heat. b. a portion of the energy is destroyed, which means the ecosystem must take in more energy from the universe. c. most of the energy is converted into nuclear energy by decomposers, and the rest of the energy is absorbed by plants. d. all of the energy is lost to the environment, which decreases the total amount of energy available in the ecosystem.