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Ecology
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The scientific study of interactions among organisms and between organisms and their environment, or surroundings.
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Biosphere
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Combined portions of the planet in which all of life exists, including land, water, and air, or atmosphere
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Species
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Group of organisms so similar to one another that they can breed and produce fertile offspring
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Population
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Groups of individuals that belong to the same species and live in the same area
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Community
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Assemblages of different populations that live together in a defined area
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Ecosystem
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Collection of all the organisms that live in a particular place, together with their non living, or physical, environment
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Biome
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Group of ecosystems that have the same climate and similar dominant communities
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Herbivore
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Organisms that eat only plants
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Carnivore
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Organisms that eat only animals
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Omnivore
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Organisms that eat both plant and animals
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Decomposer
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Heterotrophs that breaks down organic matter
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Food chain
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A series of steps in which organisms transfer energy by eating and being eaten
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Food web
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A link that connects all the food chains in the ecosystem together
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Biomass
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The total amount of living tissue within a given trophic level
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Evaporation
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Process by which water changes from liquid form to an atmospheric gas
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