Zoology - Organisms and Populations Question with Solution | TestHub

${\mathrm{N}}_{\mathrm{t}}={\mathrm{N}}_{\mathrm{o}}+\mathrm{B}+\mathrm{I}-\mathrm{D}-\mathrm{E}$is the formula used to calculate the change in population size at a given time

interval. Nt is the change in population at time 't'. N0 is the initial population size.

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

Mortality rate is the measure of number 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 population at a particular time interval.

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