Energy and Ecosystems Definitions

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Producer
Photosynthetic Organisms
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Consumer
Organisms that obtain their energy from consuming other organisms
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Primary Consumer
Consumers that directly eat producers (1st in the chain)
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Secondary Consumer
Consumers that eat primary consumers (usually predators)
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Tertiary Consumer
Consumers that eat secondary consumers (usually predators)
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Decomposer/Saprobiotic Organism
Break down complex materials into single components using extra cellular digestion (fungi and bacteria)
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Detritivore
Break down complex materials into single components (earthworms)
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Food Chain
Feeding relationships in which producers are eaten by primary consumers, who are eaten by secondary consumers and these by tertiary consumers.
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Trophic Level
Each stage of the food chain/web
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Food Web
Links a single habitat and many different food chains together
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Biomass
Total mass of living material in a specific area at a given time. Usually measured as dry mass as the amount of water in an organism varies
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Ecosystem
An ecological unit that includes organisms and non living materials (soil/water) in a particular area
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Production Equation
Net Production = Gross Production-Respiratory Losses
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Other cards in this set

Card 2

Front

Organisms that obtain their energy from consuming other organisms

Back

Consumer

Card 3

Front

Consumers that directly eat producers (1st in the chain)

Back

Preview of the back of card 3

Card 4

Front

Consumers that eat primary consumers (usually predators)

Back

Preview of the back of card 4

Card 5

Front

Consumers that eat secondary consumers (usually predators)

Back

Preview of the back of card 5
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