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a group of organisms of the same species that live in a specific geographical area and interbreed |
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the number of individuals of the same species that live in a given unit of area |
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the number of deaths occurring in a period of time |
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in optics, the process of separating a wave (such as white light) of different frequencies into its individual component waves (the different colors) |
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the number of births that occur in a period of time in a given area |
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the average length of time that an individual is expected to live |
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the classification of members of a population into groups according to age or the distribution of members of a population in terms of age groups |
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the percentage of newborn individuals in a population that can be expected to survive to a given age |
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an expression of the increase in the size of an organism or population over a given period of time |
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the movement of an individual or a group to a new community or region |
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the movement of an individual or group out of its native area |
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| the observations that population can grow in a pattern |
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an environmental factor that prevents an organism or population from reaching its full potential of distribution or activity |
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a model of population growth that assumes that finite resource levels limit population growth |
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the largest population that an environment can support at any given time |
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| density-independent factor |
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a variable that affects a population regardless of the population density, such as climate |
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the crossing or mating of plants or animals with close relatives |
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