APHuG 2.1-3 & 9 Vocabulary

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What is Population Distribution?

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the pattern of where people live

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Population Density

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the measurement of the number of people per unit of area

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Arithmetic population density

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the total number of people divided by the total land area

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Physiological density

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the number of people per unit of arable land

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Agricultural Density

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the ratio of the number of farmers to the amount of arable land

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Carrying Capacity

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the maximum population size of the species that the environment can sustain

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Population Composition

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the breakdown of a population by characteristics like age, sex, ethnicity, occupation, and other demographic factors

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Age/Sex Ratio

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comparison of the numbers of males and females of different ages

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Population Pyramid

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a graph of the population of an area by age and sex - when a population is growing it takes a pyramid shape, hence the name

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Dependency Ratio

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a demographic metric that measures the proportion of a population that is not of working age (typically under 15 and over 65) compared to the working-age population (usually 15-64 years old)