Human population after the $17$th century $A.D.$ is thought to be in which phase?

$A$ population of $500$ experiences $55$ births and $5$ deaths during a one-year period. What is the reproductive rate for the population during the one-year period?

If the population density at time $t$ is $N_t$,then the population density at time $t+1$ is given by:

Match the following columns:

Column-$I$ (Value of $r$)	Column-$II$ (Example)
$P. 0.12$	$I$. Flour beetle
$Q. 0.015$	$II$. Norway rat
$R. 0.0205$	$III$. Human population in India in $1981$

Assertion: In a sigmoid growth curve,the population finally stabilizes itself.
Reason: Finally,the death rate increases more than the birth rate.

In a population,the condition at which the rate of addition of new members is more than the rate of individuals lost indicates: