Home
Class 12
BIOLOGY
(a) India has greater ecosystem diversit...

(a) India has greater ecosystem diversity than norway .Do you agree with the statement? Given reasons in support of your answer
(b) Write the difference between genetic biodiversity and species biodiversity that exists at all the levels of biological orgainisation

Text Solution

Verified by Experts

(a) India has greater ecosystem diversity than norway yes because of desert rain forest mangroves coral reefs wetlands estureaies and alphine meadows
(b) Genetic diversity:
(i)Genetic diversity is the total number of genetic characteristics in the genetic make up of a speicis
(ii) A single speices musght show high diversity at the genitc level (e.g chinese indian american african) etc india has more than 50000 genetically different strains of rice and 1000 varities of mango.
(iii) Genetic diversity allows species to adopt to changing environments .This diversity aims to ensure that some species survive drastic changes and thus carry on disirable genes.
specific diversity :
(i) It is the ratio of one species population over total number of organisms across all species in the givben biome zero would be infinete diversity and one represents only one speices present
(ii) Species diversity is a measure of the diversity within an ecological community that incorporated both species richness (the number of speices in a community ) and the evenesss of speices
(iii) For example the western Ghats have a greater amplhibian speices diversity than the eastern ghats .there are more than 200000 species in india of which several are confined to indian (endemic)
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SET-II|40 Videos
  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SET-III|46 Videos
  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise [OUTSIDE DELHI : SET-III ](SECTION-C)|4 Videos
  • SAMPLE PAPER 2019

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise Section E Part B|3 Videos
XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-C.B.S.E CLASS XII
  1. Draw a diagram of mature human sperm . Label any three parts and write...

    Text Solution

    |

  2. (a) Expand VNTRs and describe its role in DNA fingerprinting (b) Lis...

    Text Solution

    |

  3. Differentiate between parthenocarpy and parthenogenesis giving example...

    Text Solution

    |

  4. Medically it is adivised to all young mothers that breastfeeding is t...

    Text Solution

    |

  5. Explain the mechanism of sex determination in birds .How does it diffe...

    Text Solution

    |

  6. (a) How has the development of bioreactor helped in biotechnology? (...

    Text Solution

    |

  7. Explain the roles of the following with the help of an example each in...

    Text Solution

    |

  8. Explain out breeding out crossing and cross breeding practices in ani...

    Text Solution

    |

  9. (a) Organic farmers prefer biological control of diseases and pests to...

    Text Solution

    |

  10. (a)Different between analogous and hmologos structures (b) Select an...

    Text Solution

    |

  11. (a) India has greater ecosystem diversity than norway .Do you agree wi...

    Text Solution

    |

  12. Explain the effect on the characteristics of a river when urban sewage...

    Text Solution

    |

  13. How has the use of agrobacterium as vectors helped in controlling melo...

    Text Solution

    |

  14. Looking at deteriorating air quality because of air pollution in many ...

    Text Solution

    |

  15. (a) Describe any two devices in a flowerings plant which prevent both ...

    Text Solution

    |

  16. (a) Explain menstrual cycl in human females (b) How can the scientif...

    Text Solution

    |

  17. (a) Write the scientific name of the organism Thomas hunt morgan and h...

    Text Solution

    |

  18. (a) state the central dogma as proposed by francis crick are there an...

    Text Solution

    |

  19. (a) Following are the responses of different animals to various abioti...

    Text Solution

    |

  20. (a) What is a tropihic level in an ecosystem? What is standing crop wi...

    Text Solution

    |