The energy contained in the feces is not lost from the ecosystem. It can still be consumed by decomposers.
Heat energy
lost as heat through metabolism and cannot be recycled back into the system.
Energy is sequencing in ecosystem. Earth recieve energy from sun which absorb by land and transform to wind energy and by water cause vaporization to cloud drift by wind to mainland and become hydropower. Energy recieved by plant was stored as chemical energy and being transferred by organism consuming plant. Dead plant and animal buried under pressure become fossil fuel. And all energy released from ecosystem activities lost through radiation to space.
Entropy. To "cycle" the energy would need to be reused, in reality the energy flows in from the outside and flows back out. (If the system were energy blocked, then all the energy would convert to heat and thus be useless.)
Energy enters an ecosystem through sunlight and is converted into chemical energy by producers through photosynthesis. This energy is then transferred to consumers through the food chain as they eat other organisms. Ultimately, energy is lost as heat as it moves through the ecosystem.
Energy that is lost at each trophic level of an ecosystem is replenished by the producers. The producers get it from the sun.
heat
Heat energy
90 % is lost.
Energy in an ecosystem flows in whats called the 10% rule. Meaning, as you move up the pyramid 10% of energy is lost.
When energy is transferred in an ecosystem, potential energy is lost as heat. As organisms consume food, energy is converted to fuel various life processes. This energy is then released as heat during cellular respiration, contributing to the overall entropy of the system.
After gross primary productivity (GPP) occurs in an ecosystem, energy is lost through processes such as respiration, heat loss, and consumption by other organisms. This results in a decrease in the amount of energy available for further growth and development within the ecosystem.
The Lost of potential energy.
The water cycle!
heat
Heat
lost as heat through metabolism and cannot be recycled back into the system.