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5
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All of the ecosystems on Earth
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8
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the envelope of gases surrounding the earth or another planet
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10
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A group of individuals that belong in the same species and live in the same area
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11
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All the organisms that live in a place, along with their physical environment
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12
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any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
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13
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The study of how organisms interact with one another and with their physical environment
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1
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An individual living thing
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2
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A group of similar organisms that can mate and produce fertile offspring
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3
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a large naturally occurring community of flora and fauna occupying a major habitat
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4
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the weather conditions prevailing in an area in general or over a long period
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6
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all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
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7
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the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain
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9
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All the populations of all the different species that live together in a particular area
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