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| Biological environment consisting of the organisms in an area and the abiotic factors with which they interact |
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| a large region characteized by climate, rainfall and plant and animal communities |
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| biome with cold temperatures and moderate rainfall |
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| biome with extremely low rainfall |
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| biome with moderate temperature and high rainfall |
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| biome with moderate temperature and rainfall |
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| biome with high temperature and rainfall |
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| biome with high temperature and moderate rainfall |
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| areas where rivers enter salt water |
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| ecosystems with shallow or seasonal water |
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| the movement of carbon through living and nonliving things |
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| the process by which plants capture carbon from the atmosphere |
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| the process by which organisms release carbon into the atmosphere |
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| the process by which material settles on the bottom of bodies of water |
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| the process by which rocks are formed |
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| the movement of water through various forms |
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| the process by which precipitation flows down hill |
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| the movement of nitrogen through various forms |
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| the process by which microorganisms turn nitrogen in the atmosphere into molecules in the soil that plants can use |
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| organisms that eat producers |
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| organisms that eat consumers |
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| the breaking down of organisms |
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| substances made of 2 or more kinds of particles |
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| the smallest pieces of matter that retain the properties of compounds |
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| essential elements for life |
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| hydrogen, oxygen, carbon, nitrogen, calcium and phosphorous |
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| steps in a food chain or energy pyramid, examples are producers and consumers |
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| organisms that use sunlight to get nutrients from nonliving matter |
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| organisms that break down dead organisms |
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| a diagram that shows feeding relationships |
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| a species that is new to an environment and disrupts existing equilibriums |
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| the disruption of a resource that is not private, due to people or countries trying to get what they can from it before others get what they can |
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| part of cycle in which information or stuff affects an earlier part of the cycle |
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| feedback that turns a small change into a bigger change |
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| feedback that brings a process toward equilibrium |
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| information gathered directly from the senses |
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| a state in which inputs are equal to outputs |
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| the largest population that an environment can support in equilibrium |
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| deductions or conclusions |
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| a simplified representation |
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