ZoologyNEET 2025Population attributes, growth models and interactions

Organisms and Populations

Which one of the following equations represents the Verhulst–Pearl logistic growth of a population?

A. $\frac{d N}{d t} = r (\frac{K - N}{K})$
B. $\frac{d N}{d t} = r N (\frac{K - N}{K})$ ✓
C. $\frac{d N}{d t} = r N (\frac{N - K}{N})$
D. $\frac{d N}{d t} = r K (\frac{N}{K})$

Solution

The Verhulst–Pearl logistic equation is $\frac{d N}{d t} = r N (\frac{K - N}{K})$ , growth slowing as the population $N$ approaches the carrying capacity $K$ .

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Organisms and Populations

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