Organisms release energy from carbon molecules to be used for muscle contration or active transport
Energy which is converted into heat energy is lost
Heat energy cannot be converted back into chemical energy which is why
Heat is lost from the ecosystem
An energy source is required to replace the energy lost [sunlight]
- Food passed to Saprotrophs rather than the next Trophic Level
Organisms die before eaten [disease]
Parts of organisms cannot be eaten [hair, bones]
Indigestible parts [cellulose]
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