Biotic potential is:

In the exponential growth equation $N_{t}=N_{0} e^{rt}$,$e$ represents :

Any species growing $A$ under unlimited resource conditions can reach enormous population densities in a short time. Darwin showed how even $B$ growing animal like elephant could reach enormous numbers in absence of check and that characteristics of organism is called $C$. Choose the correct option for $A, B$ or $C$ respectively.

From the given graph of population growth,select the correct option that shows the correct value of '$r$' and the corresponding age pyramid.

$A$ bacterial population grows at a constant rate per minute. If the logarithm of the population size is plotted against time, what is the shape of the graph?

Select the correct sequence of phases in the bacterial growth curve.