Energy Flow Through EcosystemsThe energy that flows through most ecosystems comes from the sun. Primary producers convert a fraction of the sun's energy into chemical energy, which can be usedby consumers. Food webs describe how energy flows between trophic levels in an ecosystem, and a trophic pyramid represents the amount of energy available at eachtrophic level.Part A - Identifying trophic levels in a food webUse the following diagram of a food web to sort the items below.
Drag each label to the appropriate bin. If an organism is both a secondary consumer and a tertiary consumer, drag it to the "both secondary and tertiaryconsumer" bin.
SubmitHintsMy AnswersGive UpReview PartCorrectPrimary producers (autotrophs) and detritus, such as decaying plant material, are at the lowest trophic level in a food web. Primary consumers anddecomposers (detritivores) rely on primary producers and detritus, respectively, for energy and organic compounds. Secondary consumers eat primaryconsumers and decomposers, and tertiary consumers eat secondary consumers. When an organism dies, its chemical elements are recycled, becoming
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