First slide

Populations

Question

The change in population size at a given time interval t, is given the expression
N_t = N_o + B + I – D – E
I, B and D stand respectively for

Moderate

A

rate of immigration, mortality rate, natality rate
B

rate of immigration, natality rate, mortality rate
C

rate of emigration, natality rate, mortality rate
D

mortality rate, natality rate, rate of immigration

Solution

In the equation, N_t = N_o + B + I $-$ D $-$ E
N_t= Population at time t
N_o = Initial population
B = Birth rate
D = Death rate
I = Rate of immigration
E = Rate of emigration

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