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प्रश्न
What is an age-pyramid?
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उत्तर
An age pyramid is a graphical representation of the distribution of various age groups within a population of a region forming the shape of a pyramid when the population is growing.
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संबंधित प्रश्न
List the attributes that populations but not individuals possess.
Mention the different ways by which the population density of different species can be measured.
Measures of ‘Central tendency’ refer to:
The phenomenal and rapid increase of population in a short period is called ______.
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Banyan
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Fish
Label the three tiers 1, 2, 3 given in the above age pyramid.
The following diagrams are the age pyramids of different populations. Comment on the status of these populations.
Write the best method to measure the population density of a single Banyan tree in comparison to Partlzenium weeds in a forest by an ecologist. Explain and justify your answer.
Important attributes belonging to a population but not to an individual are:
- Birth rate and death rate
- Male and female
- Birth and death
- Sex-ratio
Select the correct option from the given options:
