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Related Flashcards
Cards In This Set
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Abiotic
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Nonliving features of the environment. (Examples include air, water, sunlight, soil, and temperature.)
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Atmosphere
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The air surrounding Earth. (78% Nitrogen, 21% oxygen)
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Biotic
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Features of the environment that are alive or were once alive.
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Carbon Cycle
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Model describing how carbon molecules move between the living and non-living world.
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Chemosynthesis
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Process in which producers make energy-rich molecules from chemicals.
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Climate
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Average weather conditions over time.
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Condensation
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The process that takes place when a gas changes to a liquid.
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Energy Pyramid
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Model that shows the amount of energy available at each feeding level in an ecosystem.
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Evaporation
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The process that takes place when a liquid changes to a gas.
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Food Web
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Model that shows the complex feeding relationships among organisms in a community.
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Nitrogen Cycle
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Model describing how nitrogen moves from the atmosphere to the soil, to living organisms, and then back to the atmosphere.
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Nitrogen Fixation
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Process in which some types of bacteria in the soil change nitrogen gas into a form of nitrogen that plants can use.
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Soil
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Mixture of mineral and rocks, the remains of dead organisms, air, and water.
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Water Cycle
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Model describing how water moves from Earth's surface to the atmosphere and back again. (Evaporation, condensation, and precipitation.)
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