NEET 2006 Biology question

The formula for exponential population growth is-

(1)dt/dN = rN
(2)dN/rN = dt
(3)rN/dN = dt
(4)dN/dt = rNCorrect

Answer: (4)

Solution

In exponential (J-shaped) growth, with unlimited resources, the rate of increase of population size N with time t is proportional to the number of individuals present: dN/dt = rN, where r is the intrinsic rate of natural increase. This standard NCERT form is option (4). Option (1) dt/dN = rN

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Question ID VK-089649