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A group of entities belonging to the same species, residing in a specific geographical area at a particular time, together functioning as a unit can be termed as a population. Example тАУ All humans living in a particular area at a specific time comprise the population of humans.
Listed below are the attributes that a population exhibits:
тАв Natality or Birth rate
It can be given by the ratio of live births in a particular area to the population of that area. Birth rate can be expressed as the number of individuals added to the population in terms of members of the population
тАв Mortality or Death rate
It is the ratio of deaths in a region to the population of a region. Death rate can be expressed as the loss of individuals in terms of members of the population
тАв Age distribution
It can be given by the percentage of individuals of various ages in a given population. A population consists of individuals at any given time, and are present in different age groups. Typically, an age pyramid can be used to depict the age distribution pattern.