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Energy Flow/pyramids
Energy Flow in Ecosystems
Term | Definition |
---|---|
producer | an organism that makes its own food |
consumer | an organism that obtains energy by feeding on others |
herbivore | consumers that eat only plants |
carnivore | consumers that eat only animals |
omnivore | consumers that eat both plants and animals |
scavenger | carnivore that feeds on the bodies of dead organisms |
decomposer | an organism that breaks down wastes and dead organisms and returns the nutrients to the ecosystem |
food chain | a series of events where one organism eats another and obtains energy |
food web | many overlapping food chains |
energy pyramid | a diagram that shows the amount of energy that moves from one feeding level to another in a food web |
sun | energy source for food chains and webs |
autotroph | self feeder |
heterotroph | other feeder |
ten percent | the amount of energy available to the next level in an energy pyramid |