(the change of the size and age of a population). However, demographers use the term "population" differently from biologists, even if there are some similarities between these definitions: biologists study the number of individuals in a particular area and its evolution over time under varying conditions, while demographers count individuals by some certain criteria at a given time in a specific region.

Etymology

The word population evolved from the Latin word "populus", which means "people" and which was originally used in

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