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Topic 4 Lesson 2
Energy Flow in Ecosystems
Term | Definition |
---|---|
producer | An organism that can make its own food. |
consumer | Gets energy by feeding on (eating) other organisms. |
decomposer | Break down biotic wastes and dead organisms, returning the materials to the ecosystem. |
food chain | A series of events in which one organism eats another and obtains (gets) energy and nutrients. |
food web | Consists of many overlapping food chains in an ecosystem. |
energy pyramid | Shows the amount of energy that moves from one feeding level to another in a food web. |