Home
Class 12
BIOLOGY
Draw and explain expanding age pyramids ...

Draw and explain expanding age pyramids of human population. Why is it so called ?

Text Solution

Verified by Experts

Age pyramids shows age distribution of males and females in a combined diagram. In expanding Age pyramids, more number of males and females are present at the reproductive age. High birth rate and low death rate increases the number of the young population leading to an increase in population.
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise OUTSIDE DELHI 2014 SET -I [COMPTT]|6 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise OUTSIDE DELHI SET II|15 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET-III Section E|2 Videos

  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise Section E Part B|3 Videos

Similar Questions

Explore conceptually related problems

Age Pyramid of expanding population is :

Why is a transistor so called ?

What are the three types of age pyramids for human population?

Draw labelled diagrams of stable and declining age pyramids of human population.

If the age pyramid of a population is bell shaped, it will show

How does an age pyramid for human population at given point of time helps the policy - makers in planning for future .

The respresentation of age pyramid for human population given here, shows

a) What is an age-pyramid? b) Name three representative kinds of age-pyramids for human population and list the characteristics for each one of them.

One who studies human population trends and changes is called :

XII BOARDS PREVIOUS YEAR-XII BOARDS-SET 1 [COMPTT]
  1. Human insulin when synthesised in the body needs to be processed befor...

    Text Solution

    |

  2. Write any two ways how genetically modified plants are found to be use...

    Text Solution

    |

  3. Provide two reasons that make the cound of prokaryotic species difficu...

    Text Solution

    |

  4. Explain how does the inflow of large amount of nutrients like phosphat...

    Text Solution

    |

  5. How is apomixis different from parthenocarpy ?

    Text Solution

    |

  6. Describe any two modes by which apomictic seeds and be produced.

    Text Solution

    |

  7. Why is haemophilia rare in human females ? Mention a clinical symptom ...

    Text Solution

    |

  8. What are the transcriptional products of RNA polymerase III?

    Text Solution

    |

  9. Differentiate between 'Capping' and 'Taling'.

    Text Solution

    |

  10. Expand hrRNA.

    Text Solution

    |

  11. Giving three reasons, write how Hardy-Weinberg equilibrium can be affe...

    Text Solution

    |

  12. Do you support 'Dope' test being conducted on sportspersons perticipat...

    Text Solution

    |

  13. Suggest and describe a technique through which a virus-free healthy pi...

    Text Solution

    |

  14. How are Baculoviruses and Bacillus thuringiensis use as bio-control a...

    Text Solution

    |

  15. Draw a schematic diagram of the E. coli cloning vector Pbr322 and mar...

    Text Solution

    |

  16. Draw schematic diagrams of segments of a vector and a foreign DNA with...

    Text Solution

    |

  17. Draw the vector DNA segment and foreign DNA segments after the action ...

    Text Solution

    |

  18. Draw and explain expanding age pyramids of human population. Why is it...

    Text Solution

    |

  19. Describe the formation of mature female gametophyte within an ovule in...

    Text Solution

    |

  20. Describe the structure of the cell(s) that guide(s) the pollen tube to...

    Text Solution

    |