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16 terms

Ecology Vocabulary

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Autotroph
An organism that makes its own food
Carnivores
Meat eaters
Consumer
An organism that obtains energy by feeding on other organisms, an organism that obtains energy by feeding on other organisms
Decomposer
Organism that breaks down and obtains energy from dead organic matter
Ecological Pyramids
Show the relative amount of energy or matter contained within each trophic level in a given food chain or food web
Energy pyramids
A diagram that shows the energy that is available at each level of an ecosystem
Food Chain
(ecology) A community of organisms where each member is eaten in turn by another member
Food Web
A diagram that shows the feeding relationships between organisms in an ecosystem
Herbivore
Plant-eating animal
Heterotroph
Organism that obtains energy from the foods it consumes; also called a consumer
Primary Consumers
Animals that feed on producers; ex. herbivores
Primary Producers
Autotrophs; photosynthetic organisms that use light energy to synthesize sugar & other compounds
Producer
An organism that makes its own food
Pyramid of energy
An ecological pyramid that shows the energy flow through each trophic level in an ecosystem
Secondary Consumers
Eat primary consumers
Trophic Level
Each step in a food chain or food web