age structure

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Within a population, the number or proportion of individuals in each age group (e.g. in a human population, the number of individuals aged 0–4, 5–14, 15–29, 30–44, 45–59, 60–69, over 70). Knowledge of the age structure of a population is used (with other factors) to calculate future changes in age structure and total population size.

Age structure

Subjects: Ecology and Conservation — Earth Sciences and Geography.

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