Zero growth means :
Natality balances mortality
Natality is more than mortality
Natality is less than mortality
Natality is zero
The population of an insect species shows an explosive increase in numbers during rainy season followed by its disappearance at the end of the season. What does this show ?
If the rate of addition of new members increases with respect to the individual host of the same population, then the graph obtained has:
In India, if the marriage age is changed to $21$ years then
Maximum growth rate occurs in: