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1
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the struggle between two or more living things that depend on the same limited resource.
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2
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the continuous movement of carbon through Earth, its atmosphere, and the living things on Earth.
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8
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the maximum size that a population can reach in an ecosystem.
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10
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a model used to show a feeding relationship in which many food chains overlap in an ecosystem.
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13
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an organism that captures energy from sunlight and transforms it into chemical energy that is stored in energy-rich carbon compounds.
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14
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a relationship between two species in which one species is harmed while the other benefits.
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15
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a model used to show the feeding relationship between a single producer and a chain of consumers in an ecosystem.
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17
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an animal that other animals hunt and eat.
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19
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the interaction between individuals from two different species that live closely together.
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20
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the continuous movement of water through Earth, its atmosphere, and the living things on Earth.
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21
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a group of organisms of the same species that live in the same area.
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22
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an organism that feeds and breaks down dead plant or animal matter.
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24
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an interaction between two species in which one species benefits without harming the other.
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25
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a term used to describe an interaction between two or more living things in which they are said to work together.
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26
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all the living and nonliving things that interact in a particular environment.
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27
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all the population that live and interact with each other in a particular place.
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29
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a natural process that involves a gradual change in the plant and animal communities that live in an area.
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