Energy does not cycle through an ecosystem.This is because energy enters an ecosystem through photosynthesis as it changes to chemical energy.This is then used to fuel metabolic activities in

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Energy enters an ecosystem through photosynthesis and is used by producers to fuel metabolic activities. This energy is then passed on to consumers as they eat the producers, and then to decomposers as they break down the remains of producers and consumers. However, energy is not recycled within the ecosystem. Instead, it is continually lost as metabolic heat during each step of energy transfer. Therefore, all three trophic levels (producers, consumers, and decomposers) contribute to the flow of energy through an ecosystem, but there is no cycling of energy.

Energy Does Not Cycle Through an Ecosystem