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| the study of the interactions between organism and the living and nonliving components of their environment |
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| the dependence of every organism on its connections with other living and nonliving parts of its enviornment |
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| a model that represents of describes the relationships between the components of an ecological system |
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| the broadest, most inclusive level of organization |
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| includes all of the organisms and the nonliving environment found in a particular place. |
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| is all the interacting organisms living in an area |
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| includes all the members of a species that live in one place at one time |
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| living components of the environment |
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| non-living, physical and chemical characteristics of the enviornment |
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| a graph of performance versus values of an environmental variable, such as temperature |
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| place where an organism lives |
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| an organism's change in response to a change in the organism's environment |
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| organisms that do not regulate their internal conditions |
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| organisms that use energy to control some of their internal conditions |
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| a state in which seeds, spores, bulbs, and other reproductive organs stop growth and development and reduce their metaolism, especially respiration |
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| any movement of individuals or populations from one loction to another; specifically, a periodic group movement that is characteristic of a given population or species |
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| the specific role, or way of life, or a species within its environment |
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| species that can tolerate a range of conditions and use a variety of resources |
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| species that have narrow niches |
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| organisms that manufacture their own food |
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| in which organisms use energy stored in inorganic molecules to produce carbohydrates |
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| gross primary productivity |
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| the rate at which producers in an ecosystem capture the energy of sunlight by producing organic compounds |
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| the organic material that has been produced in an ecosystem |
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| the rate at which biomass accumulates in an ecosystem |
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| obtain energy by consuming organic molecules made by other organisms |
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| eat both producers and consumers |
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| are consumers that feed on the'grabage'of and ecosystem |
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| organisms that break down complex molecules into simpler molecules |
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| indicates the organism's position in a sequence of energy transfers |
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| single pathway of feeding relationships among organisms in an ecosystem that results in energy transfer |
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| a diagram that shows the feeding relationships among organisms in an ecosystem |
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| water in the soril or in underground fromations of porous rock |
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| movement of water between there various reservoirs |
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| process by which water evaporates from the leaves of plants in terrestrial ecosystems |
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