Ecosystem Concepts

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Abiotic

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The nonliving component of an ecosystem

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Biomass

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The total dry mass of all selected organisms

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Biotic

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The living or once-living organisms in an ecosystem

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Community

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A group of various species that live in the same habitat and interact with each other

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Conservation

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Careful management and use of resources to assure continuing availability in the longer run

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Consumer

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An organism that eats other organisms

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Decomposer

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Any organism that feeds or obtains nutrients by breaking down organic matter from dead organisms

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Ecosystem

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A community of organisms that interact in an environment

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Environment

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All the living and non-living things that surround an organism

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Food Chain

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A simple model that shows how matter and energy move from one organism to another in an ecosystem