In India, if the marriage age is changed to $21$ years then
Population growth rate will be unaffected
Population growth rate will decrease
Population growth rate will increase
None of the above
The carrying capacity of a population is determined by its
In a population, the condition at which the rate of addition of new members is more than the rate of individuals lost indicates
Population of any species is
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 ?
Which one is right for logistic model for population growth?
$I.$ Population growth rate increases as the size of population approaches the carrying capacity
$II.$ All individual have same effect on population growth
$III.$ There are unlimited natural resources
$IV.$ As population increases the competition goes on increasing
Select the correct combination