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12 Cards in this Set
- Front
- Back
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Producer
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Photosynthetic organisms that manufacture organic molecules using light energy, water and carbon dioxide
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Consumer
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Organisms that obtain energy by feeding on other organisms
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Primary consumer
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Organisms that obtain energy by feeding on producers
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Secondary consumer
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Organisms that obtain energy from feeding on primary consumers
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Decomposer
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Micro organisms e.g. bacteria and fungi that break down complex organic molecules into simple components and release minerals and elements into the soil
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Detritivore
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Small organisms e.g. wood lice and earthworms that break down the complex organic molecules in dead and decaying plant and animal matter
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Food chain
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A feeding relationship in which the producers are eaten by primary consumers, which in turn are eaten by secondary consumers
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Tropic level
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The position of an organism in a food chain
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Gross production
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Total quantity of energy that the plants in a community convert to organic matter
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Net production
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Rate at which plants store energy
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Biomass
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Total mass of plants and/or animals in a particular place
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Dry biomass
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The mass of plants and/or animals in a particular place minus the water content
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