Home
Class 12
BIOLOGY
Which of the following statement/is /are...

Which of the following statement/is /are wrong?
I. Communities with more species, generally, tend to de more stable than those with less species.
II. A stable community should show too much variation in productivity from year to year.
III. The colonisation of tropical pacific Islands by humans is said to have led to the extinction of more than 2,000 species of native birds.
IV. The accelerated rates of species extinctions that the world is facing now have nothing to do with human activities.
V. The biological wealth of our planet has been declining rapidly and the accusing finger is clearly pointing to human activities .

A

II only

B

II and IV only

C

III and V only

D

I, II and IV only

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • BIODIVERSITY AND CONSERVATION

    GRB PUBLICATION|Exercise NCERT CORNER (EXEMPLAR PROBLEMS)|30 Videos
  • BASIC CONCEPTS OF IMMUNOLOGY

    GRB PUBLICATION|Exercise TRANSPLANTATION|95 Videos
  • BIOTECHNOLOGY : APPLICATION IN AGRICULTURE AND HEALTH

    GRB PUBLICATION|Exercise Assertion-Reason Type Questions|21 Videos

Similar Questions

Explore conceptually related problems

Who confirmed communities with more species tend to be more stable than those with less species ?

Colonisation of tropical pacific Islands by humans have resulted in extinction of more than……….. Species of native birds.

Which of the following alkenes are more stable than

Which of the following species is not stable?

Which of the following alkene is more stable than

A : A stable community should show much variation in year to year productivity. R : It must not be resilient to occasional disturbance.

Assertion: A community with more species is more stable than that with less species. Reason: More the number of species, lesser the variation in the total biomass production year after year.

Extinction of more than 200 species of cichlid fish in lake Victoria was due to introduction of

Which of the following is the rearranged more stable carbocation of the given species?

GRB PUBLICATION-BIODIVERSITY AND CONSERVATION-NCERT CORNER (EXEMPLAR PROBLEMS)
  1. What is common to Lantana, Eichornia and African catfish ?

    Text Solution

    |

  2. The extinction of passenger pigeon was due to

    Text Solution

    |

  3. Which of the following statements is correct?

    Text Solution

    |

  4. Among the ecosystem mentioned below, where can one find maximum biodiv...

    Text Solution

    |

  5. Which of the following forests is known as the 'lungs of the planet ea...

    Text Solution

    |

  6. The active chemical drug reserpine is obtained from

    Text Solution

    |

  7. Which of the following group exhibit more species diversity

    Text Solution

    |

  8. Which of the below mentioned regions exhibit less seasonal variations ...

    Text Solution

    |

  9. The historic convention on Biological Diversity held in Rio de Janeiro...

    Text Solution

    |

  10. What is common to the techniques (i) in vitro fertilisation, (ii) Cryo...

    Text Solution

    |

  11. Select the correct option : (a)Rhinoceros (i) Africa (b) Dodo (...

    Text Solution

    |

  12. Read the following five statements (A to E) about biodiversity and sel...

    Text Solution

    |

  13. Select the correct option : (a) Sacred groves (i) Tropical evergre...

    Text Solution

    |

  14. Global biodiversity representing proportionate number of species of ma...

    Text Solution

    |

  15. Select the correct option : (a) The Earth Summit (i) Nanda Devi (...

    Text Solution

    |

  16. Consider the followin statements . A. Among animals, birds are the m...

    Text Solution

    |

  17. Which one of the following statements is incorrect ?

    Text Solution

    |

  18. Consider the following statements with respect to patterns of biodiver...

    Text Solution

    |

  19. Which of the following statement/is /are wrong? I. Communities with ...

    Text Solution

    |

  20. Which one of the following statements is wrong ?

    Text Solution

    |