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Describe Diagrammatic Representation of Age Structure Showing Declining Population. - Biology

Describe diagrammatic representation of age structure showing declining population.

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a. The relative proportion of individuals of various age groups in the population is called
age structure of the population.
b. Age structure of a population is the percentage of individuals of different age groups such as young (0-14 years), adults (15-59 years) and old (60 years and above).
c. The distribution of these age groups determine the trend of population.

d. In declining population, number of post reproductive age group is large whereas the number of pre reproductive age group is small.
e. Thus, the age structure shows declining population.

Concept: Population and Ecological Adaptations
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