Construct an age pyramid which reflects an expanding growth status of human population. - Biology

Short Note

Construct an age pyramid which reflects an expanding growth status of human population.



Growing population:
The population having larger number of individuals of the pre -reproductive age groups shows a very rapid growth rate. Thus is known as growing population.
Young individual in the age group (0-14 years) are included in pre-reproductive group, individuals in age group (15-59) are included in reproductive group and individuals in age group (60 yrs and above) are included in post reproductive group.

Concept: Population
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2013-2014 (March) All India Set 1


Describe steady population with the help of a pyramid.

With the help of suitable diagrams, explain how the age structures determine the trend of population.

Define the term natality.

Distinguish between Natality and Mortality.

In sex ratio, Tamil Nadu ranks

Which of the following is wrongly matched?

In literacy rate, TN ranks

Which district in TN has the highest sex ratio?

Which district has the lowest child sex ratio?

Which Union Territory has the highest sex ratio?

In human development index, TN is ranked

State any two districts with favourable sex ratio. Indicate the ratios.

Describe the qualitative aspects of population.

Population density increases due to ______.

Which of the following attributes links ecology to population dynamics, genetics, and evolution?

The birth rate of a population is also known as______.

What will be the birth rate per individual per hour of a population of 50 Paramoecium present in a pool. The population of Paramoecium increases to 150 within an hour.

What does 'N' represent in the given equation of population density?

[Nt+1 = Nt + [(B + I) - (D + E)]

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).

Identify the type of population depicted in the given pyramid.

From the given diagram, identify the type of population growth curve:

Which of the following conditions represents zero population growth?

In a growing population of a country, ______.

Identify ‘A’ in the given graph of population growth:

How many national parks and sanctuaries are present in Maharashtra?

What are the decisive factors for population density?

Identify the appropriate term for the number of births under ideal conditions:

Explain the term Emigration.


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