**Doubling Time:** time needed for the population to double in size

$\mathrm{Doubling}\mathrm{Time}=\frac{\mathrm{ln}2}{\mathrm{ln}(1+\mathrm{r})}$

What is meant by the term “doubling time” and how did changing values for *N*_{0} affect the doubling time of a population?

a) Doubling time is the amount of time needed for a population to double in size; increasing *N*_{0} did not change the doubling time.

b) Doubling time is the amount of time needed for a population to double in size; increasing *N*_{0} increased the doubling time.

c) Doubling time is the time needed for an individual in the population to reproduce itself; increasing *N*_{0} did not change the doubling time.

d) Doubling time is the time needed for an individual in the population to reproduce itself; increasing *N*_{0} decreased the doubling time.