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प्रश्न
Label the three tiers 1, 2, 3 given in the above age pyramid.
उत्तर
- represents Pre-reproductive age group
- represents Reproductive age group
- represents Post-reproductive age group
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संबंधित प्रश्न
"Analysis of age-pyramids for human population can provide important inputs for long-term planning strategies." Explain.
List the attributes that populations but not individuals possess.
What is an age-pyramid?
Mention the different ways by which the population density of different species can be measured.
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Deer
The following diagrams are the age pyramids of different populations. Comment on the status of these populations.
Identify the type of pyramid given above. Write the identifying feature on the basis of which you identified it.
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:
With the help of neatly labelled diagrams, explain the different types of age pyramids of human population.
The number of lily plants in a pond was found to be 50. After one year, the number. increased to 65. Calculate the natality of lily plants.
