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प्रश्न
Describe steady population with the help of a pyramid.
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उत्तर
When the pre-reproductive and the post-reproductive age groups in a population have almost the same number of individuals, then the population remains stable. This kind of population is called steady population. The young individuals in the age group of 0–14 years are proportional to the old individuals in the age group of 60 years and above.
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संबंधित प्रश्न
Construct an age pyramid which reflects an expanding growth status of human population.
Define the term natality.
Distinguish between Natality and Mortality.
Complete the given analogy.
Mortality: No. of deaths in a population during a given period:: Emigration: ____________.
Calculate the birth rate if a population of 150 Paramoecium present in a pool increases to 450 after an hour.
Identify the type of population shown in the given figures (a and b).
Logistic growth curve has many phases which are respectively:
A population is a group of all ____________ in a given time.
The type of natality that is relative to a specific criterion such as age is ______.
Match the following Column I with Column II.
| Column I | Column II |
| A. Population | (i) Part of the earth has all ecosystems. |
| B. Community | (ii) Assemblage of all individuals belonging to different species of an area. |
| C. Ecosystem |
(iii) Group of similar individuals of the same species, found in an area. |
| D. Ecosphere | (iv) Interaction between living organisms and their physical environment. |
