Draw and explain a logistic curve for a population of density (N) at time (t ) whose intrinsic rate of natural increase is (r) and carrying capacity is (k).

Explanation

Density equation : dN/dt=rN`((K-N)/K)`

(a) when responses are not limiting the growth, plot is exponential
(b) when responses are Limiting the growth, plot is logistic, K is carrying capacity.
The resources for growth for most animal population are finite and become limiting sooner or later, the logistic growth model is considered a more realistic one.