The physiological capacity of a population to produce offspring is known as:

If $8$ individuals in a laboratory population of $80$ fruit flies died during a specified time interval, the death rate in the population during that period is

Factors related to increase in population density are $:-$

Certain characteristic demographic features of developing countries are:

The absolute natality is . . . . . . realised natality.

Which type of population becomes more efficient in all work?