Question

A population of bacteria is growing initially in a lag phase, followed by phases of acceleration and decerelation and finally an sationary phase. Which of the following equation describes this type of population growth?

• A. $\frac{dN}{dt}=rN$
• B. $N_t=N_0{e}^{rt}$
• C. $r=b-d$
• D. $\frac{dN}{dt}=rN\left(\frac{K-N}{K}\right)$

Answer 1

The correct option is D $\frac{dN}{dt}=rN\left(\frac{K-N}{K}\right)$

In logistic growth, a population show initially in a lag phase, followed by phases of acceleration and decerelation and finally an sationary phase, following a S-shaped curve. This type of population growth is described by $\frac{dN}{dt}=rN\left(\frac{K-N}{K}\right)$.