Energy flow in Ecosystems

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Presentation transcript:

Energy flow in Ecosystems Read pages 819 - 831 Vobabulary: Trophic level

Trophic Levels tertiary consumer secondary consumer Primary consumer Producer

Primary Producer plant/ algae autotrophs 99% Primary consumer herbivores hetrotrophs Secondary consumer primary carnivore Tertiary consumer top carnivore Usually no more than 5 links in a food chain. Why? Detritivores, scavengers, and decomposers Detritivores: consume litter, debris, and dung Scavengers: clean-up dead carcasses Decomposers: microorganisms that complete final breakdown of organic matter

Energy Pyramid

Food Chain

Food Web

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