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(D) The population density $(N)$ is influenced by four primary factors: natality $(B)$,mortality $(D)$,immigration $(I)$,and emigration $(E)$.The form

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Increase

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(D) The population density $(N)$ is influenced by four primary factors: natality $(B)$,mortality $(D)$,immigration $(I)$,and emigration $(E)$.The formula for population density at time $t+1$ is given by: $N_{t+1} = N_t + [(B + I) - (D + E)]$.Natality $(B)$ refers to the number of births in a population during a given period,which adds individuals to the population.Immigration $(I)$ refers to the number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration,which also adds individuals to the population.Since both natality and immigration contribute to an increase in the number of individuals,an increase in these rates will lead to an increase in the overall population density.

In any population group,if the rate of natality and immigration increases,then the density of the population is . . . . . . .

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