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14 Cards in this Set
- Front
- Back
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The features of the environment that are alive.
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biotic
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The nonliving, physical features of the environment.
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abiotic
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The air that surrounds the Earth.
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atmosphere
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A mixture of mineral and rock particles, the remains of dead organisms, water, and air.
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soil
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An area's average weather conditions over time, including temperature, rainfall or other precipitation, and wind.
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climate
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Takes place when liquid water changes into water vapor, which is a gas, and enters the atmosphere.
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evaporation
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The process of changing from a gas to a liquid.
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condensation
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A model that describes how water moves from the surface of Earth to the atmosphere and back to the surface again.
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water cycle
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A process where some types of soil bacteria can form the nitrogen compounds that plants need.
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nitrogen fixation
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A transfer of nitrogen from the atmoshpere to the soil, to living organisms, and back to the atmosphere is called.
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nitrogen cycle
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When carbon molecules move between the living and nonliving world.
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carbon cycle
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The production of energy-rich nutrient molecules from chemicals.
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chemosynthesis
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A model that shows all the possible feeding relationships among the organisms in a community.
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food web
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The amount of energy available at each feeding level in an ecosystem.
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energy pyramid
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