In a growing population of a country
reproductive and pre -reproductive individuals are equal in number.
reproductive individuals are less than the post - reproductive individuals.
pre - reproductive individuals are more than the reproductive individuals.
pre - reproductive individuals are less than the reproductive individuals .
As we learnt in
Population Growth -
The size of a population for any species is not a static parameter. It keeps changing in time, depending on various factors including food availability, predation pressure and adverse weather.
- wherein
It is these changes in population density that give us some idea of what is happening to the population – whether it is flourishing or declining.
Whenever the pre-reproductive individuals or the younger population size is larger than the reproductive group, the population will be an increasing population.
Option 1)
reproductive and pre -reproductive individuals are equal in number.
This is incorrect.
Option 2)
reproductive individuals are less than the post - reproductive individuals.
This is incorrect.
Option 3)
pre - reproductive individuals are more than the reproductive individuals.
This is correct.
Option 4)
pre - reproductive individuals are less than the reproductive individuals .
This is incorrect.