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(a) dt/dN = IN

(b) dN/IN = dt

(c) rN/dN = dt

(d) dN/dt = IN

[CBSE AIPMT 2006]

Correct Option (d)

Reason : J-shaped form of population growth is mathematically described by an equation of exponential or geometric increase, which is as follows:

where, d = rate of change

t = time

N = number of females at a particular time

I = biotic potential of each female

(N can also be considered as the total population

and r as the biotic potential of each individual).

Correct Option (d)Reason : J-shaped form of population growth is mathematically described by an equation of exponential or geometric increase, which is as follows:where, d = rate of changet = timeN = number of females at a particular timeI = biotic potential of each female(N can also be considered as the total populationand r as the biotic potential of each individual).