The percentage ratio of natality over mortality is called

Under a particular set of selection pressure,organisms evolve towards the most $A$ reproductive strategy. Some organisms breed only $B$ in lifetime while others breed $C$ in lifetime. Choose the correct option for $A, B$ and $C$.

The percentage of the population of India living in Madhya Pradesh $(M.P.)$ at present is approximately: (in $\%$)

The average population density on Earth is approximately:

At one time,the number of cheetahs in a habitat is $80$. Their birth rate is $4$ and death rate is $2$. Among them,$6$ cheetahs are internal migrants (immigration) and $3$ cheetahs are migratory (emigration). Calculate the population density of cheetahs in that habitat.

The changing nature of a population is called: