Differentiate between population density and population distribution.
Population density is the number of individuals in a population per unit area. Population distribution is the pattern in which individuals in a population are dispersed in an area.
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Explain how birth rate, immigration, death rate, and emigration affect population growth.
Birth rate and immigration increase population size because they add individuals. Death rate and emigration decrease population size because they remove individuals. Population growth = (birth rate + immigration) - (death rate + emigration).
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