Energy Flow in Ecosystems 2.1 Energy Flow in Ecosystems

Energy roles a Producer a Consumer or a Decomposer Each of the organisms in an ecosystem fills an energy role. They can be . . . . a Producer a Consumer or a Decomposer

Producers – Green Plants Producers - An organism that can make its own food by the process of PHOTOSYNTHESIS

Consumers Consumers - An organism that obtains energy by feeding on other organisms. Herbivores Carnivores Omnivores Scavengers

Decomposers - recyclers Decomposers – An organism that breaks down wastes and dead organisms.

Energy Moves Through an ECOSYSTEM The movement of energy can be shown in two different diagrams called: 1-Food chains 2-Food webs

Food Chains – A series of events in which one organism eats another and obtains energy.

Food Web – The pattern of overlapping food chains in an ecosystem.

Energy Pyramid The greatest amount of energy is available at the (bottom) producer level of the pyramid. As you move up the pyramid, each level has ONLY 10% of the energy available in the level below.

Energy Pyramid end