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NEET 2026
Exam
NEET
Year
2026
Subject
Zoology
Chapter
Organisms and Populations

NEET 2026 · Zoology · Organisms and Populations

Which of the following equations depicts Verhulst-Pearl logistic...

Which of the following equations depicts Verhulst-Pearl logistic population growth ?

Options

  1. AdNdt=rN(K+NK)\dfrac{dN}{dt} = rN\left(\dfrac{K+N}{K}\right)
  2. BdNdt=rN(K−NK)\dfrac{dN}{dt} = rN\left(\dfrac{K-N}{K}\right)
  3. CdNdt=rN(K−NN)\dfrac{dN}{dt} = rN\left(\dfrac{K-N}{N}\right)
  4. DdNdt=rN(KK−N)\dfrac{dN}{dt} = rN\left(\dfrac{K}{K-N}\right)

Correct answer

B. dNdt=rN(K−NK)\dfrac{dN}{dt} = rN\left(\dfrac{K-N}{K}\right)

Step-by-step solution

The Verhulst-Pearl logistic population growth is described by the equation:

dNdt=rN(K−NK)\dfrac{dN}{dt} = rN\left(\dfrac{K-N}{K}\right)

where NN is the population density at time tt, rr is the intrinsic rate of natural increase, and KK is the carrying capacity.

Answer: dNdt=rN(K−NK)\dfrac{dN}{dt} = rN\left(\dfrac{K-N}{K}\right)
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