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4
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the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms
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7
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The envelope of gases surrounding the earth
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9
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all the inhabitants of a particular place
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10
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a community or group of living organisms that live in and interact with each other in a specific environment.
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11
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spherical concentric regions of matter that make up the earth and its atmosphere
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12
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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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1
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a group of organisms that share a genetic heritage, are able to interbreed, and to create offspring that are also fertile
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2
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deals with the relations of organisms to one another and to their physical surroundings.
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3
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the weather conditions prevailing in an area in general or over a long period.
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4
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a large naturally occurring community of flora and fauna occupying a major habitat
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5
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all the waters on the earth's surface
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6
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an individual animal, plant, or single-celled life form.
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8
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a group of people living in the same place or having a particular characteristic in common.
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