Population size is more technically called

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(A) Population size depends on several factors such as mortality,natality,etc. In nature,it can range from less than $10$ (e.g.,Siberian cranes at Bha

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Population density

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(A) Population size depends on several factors such as mortality,natality,etc. In nature,it can range from less than $10$ (e.g.,Siberian cranes at Bharatpur wetlands) to millions (e.g.,Chlamydomonas in a pond).Population size,more technically called population density (designated as $N$),does not necessarily need to be measured in numbers only. Although the total number is the most appropriate measure,in some cases,it is difficult to determine.For example:In a forest area,suppose there are $200$ Parthenium plants but only a single banyan tree with a huge canopy.The following inferences can be made:$(i)$ The population density of the banyan is low.$(ii)$ The population cover area of the banyan is high.In this example,the percentage of cover or biomass is more meaningful than the absolute population size.

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