The population of a place can be increased when:

An individual and a population have certain characteristics. Name these attributes with definitions.

In a pond,there were $500$ carp fishes at the beginning of the year. They have a birth rate of $4$ offspring per carp per year. What will be the total number of carp fish at the end of that year?

If $10$ individuals in a laboratory population of $50$ fruit flies die during a week, then the death rate during this period is $= ........$ individuals per fruit fly per week.

$A$ population is said to achieve demographic transition, if

$(a)$ Label the three tiers $1, 2, 3$ given in the above age pyramid.
$(b)$ What type of population growth is represented by the above age pyramid?