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Organisms and Populations question

2025 · Q88
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Organisms and Populations question

2025 · Q88

NEETBiologyOrganisms and PopulationsMCQ+4 / −1

Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population?

  1. A
    dNdt=rN(N−KN)\frac{d N}{d t}=r N\left(\frac{N-K}{N}\right)dtdN​=rN(NN−K​)
  2. B
    dNdt=N(r−KK)\frac{d N}{d t}=N\left(\frac{r-K}{K}\right)dtdN​=N(Kr−K​)
  3. C
    dNdt=r(K−NK)\frac{d N}{d t}=r\left(\frac{K-N}{K}\right)dtdN​=r(KK−N​)
  4. D
    dNdt=rN(K−NK)\frac{d N}{d t}=r N\left(\frac{K-N}{K}\right)dtdN​=rN(KK−N​)
View written solutionFree

Correct answer: D

Logistic growth is captured by the Verhulst-Pearl logistic growth equation, represented as:

$ \frac{d N}{d t} = r N \left( \frac{K-N}{K} \right) $

In this equation:

$ N $ is the population size,

$ r $ is the intrinsic growth rate,

$ K $ is the carrying capacity,

$\frac{d N}{d t}$ indicates the rate of change of the population over time.

This model describes how population growth slows as it approaches the carrying capacity, providing a more realistic scenario than exponential growth models.

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