When the population size (N) approaches the carrying capacity (K). The value of dN/dt approaches

prey

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predator

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moth

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both b and c

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Solution

The correct option is D
both b and c

In a logistic growth curve, the rate of change in population size dN/dt = rN (1-(N/K)). Here if the value of N approaches K, then the equation will become dN/dt = rN ((K/K) - (K/K)), which is equal to 0. Whereas in the intial phase of growth when N is very small, N/K is negligent and the equation will be dN/dt = rN (1) = rN

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