Zoology - Organisms and Populations Question with Solution | TestHub

Natality rate also called birth rate for a population. It is a measure of the number of births occurring in a population in a particular time period. It is denoted by letter B

The mortality rate is the measure of number of deaths in a particular population for a particular time period. It is denoted by letter D.

I represent the rate of immigration, which is the number of people entering an area of the population at a particular time interval.

Letter E denotes the rate of emigration, which is the number of people leaving/exiting an area or population at a particular time interval.