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प्रश्न
Comment on the growth curve given below.
उत्तर
The growth curve shown above is the logistic growth curve or S-shaped curve. Logistic growth curve is considered more realistic because unlimited resources are not available in an ecosystem or in a habitat, where K-stands for carrying capacity. N-indicates population density, which is the number of species of a population per unit area. r-is for intrinsic rate of natural increase.
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संबंधित प्रश्न
List any three important characteristics of a population and explain.
What are the three components of population change?
What is population doubling time?
Which one of the following is not a component of population change?
Which of the following attributes has not been adversely affected by Age and Skill selective migration?
On the basis of the demographic data of a country given below, construct an age pyramid and explain whether the population is stable, declining or growing.
| Age group | No. of individuals |
| Pre-reproductive | 20,000 |
| Reproductive | 15,000 |
| Post-reproductive | 10,000 |
In an exponential bacterial culture, the number of cells/ml is plotted o half log group. The growth is ______.
Assertion (A): Population of a region does not change.
Reasoning (R): Birth rate, death rate and migration affect the population of a region.
Assertion (A): The population of a region does not change.
Reasoning (R): Birth rate, death rate and migration affect the population of a region.
A: The population of a region does not change.
R: Birth rate, death rate and migration affect the population of a region.
