'Population tends to increase geometrically,while food supply increases arithmetically'. This concept was put forward by

When members of a population attain sexual maturity at different times preventing inter-breeding,it is termed as . . . . . . isolation.

The chances of a mutant gene spreading in a population increase when it is .......

Evolution is not continuous. It is a jerky and discontinuous process. This is the punch line of:

In the case of the peppered moth $(Biston \text{ } betularia)$, the dark-colored form became more prevalent than the light-colored form in England during the Industrial Revolution. This is an example of:

The work of ......... on population influenced Darwin.