Under normal conditions, ..................... are the most important factors influencing population, density.
- ABirths and deaths
- BBirths and immigration
- CEmigration and immigration
- DDeaths and emigration.
Similar Questions
Maximum growth rate occurs in:
Maximum growth rate occurs in:
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 ?
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 ?
- [AIPMT 2007]
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
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
Number of death and birth in the last stage of plateau growth curve of a population will be
Number of death and birth in the last stage of plateau growth curve of a population will be
If birth rate is $100 ,$ death rate is $10$ and number of individuals in population group is $1000 ,$ then what will be the percentage of natural growth rate?
If birth rate is $100 ,$ death rate is $10$ and number of individuals in population group is $1000 ,$ then what will be the percentage of natural growth rate?