Home
Class 12
BIOLOGY
The IUCN . Red list ( 2004 ) documents t...

The IUCN . Red list ( 2004 ) documents the extinction of ( A ) species in the last 500 years . It includes ( B ) vertebrates , ( C ) invertebrates and ( D ) plants .

A

A = 784 , B = 338 , C = 359 , D = 87

B

A = 784 , B = 330 , C = 359 , D = 95

C

A = 784 , B = 320 , C = 377 , D = 87

D

A = 784 , B = 300 , C = 359 , D = 125

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • BASIC CONCEPT OF IMMUNOLOGY

    USHA PUBLICATION|Exercise EXERCISE|141 Videos

  • BIOTECHNOLOGY & ITS APPLICATIONS

    USHA PUBLICATION|Exercise EXERCISE|76 Videos

Similar Questions

Explore conceptually related problems

How many species are documented to be extinct in last 500 years by IUCN Red List, 2004?

Assertion : Threatened species are those living species which have been greatly reduced in their number and are liable to become extinct if the causative factors continue. Reason : IUCN is an international organisation which maintains the IUCN red list of threatened species, to assess the conservation status of different species. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Dodo, passenger pigeon and Steller's sea cow became extinct in the last 500 years due to (a) Habitat destruction (b) Over-exploitation (c) Bird-flu virus infection (d) Pollution

Assertion : The Nile perch introduced into lake Victoria in east Africa led to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake. Reason : When alien species are introduced deliberately for economic or other uses, they often become invasive and cause extinction of indigenous species. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

According to IUCN, some of the extinctions include (i) Dodo (ii) Indian gazelle (iii) Thylacine (iv) Steller's sea cow (a) (i), (ii), (iii) and (iv) (b) (ii) and (iv) (c) (i),(iii) and (iv) (d) (iii) and (iv)

Introduction of alien species into new area poses a threat to extinction of indigenous species due to (a) their high nutrient requirement (b) their symbiotic relationship (c) absence of their natural predators (d) more intraspecific competition.

Which of the following fish led to the extinction of an ecologically unique assemblage of more than 200 species of cichild fish in the lake Victoria of E.Africa ? (a) Catla catla (b) Dog fish (c) Nile perch (d) African catfish

Which of the following statements describe natural extinction ? (i) Extinctions abetted by human activities (ii) Slow replacement of existing species (iii) Also known as background extinction (iv) A small population is most likely to be extinct (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii), (iii) and (iv) (d) (i), (ii), (iii) and (iv)

Which of the following statements regarding biodiversity hotspots are incorrect? (i) High endemism (ii) High level of species richness (iii) Total number is 34 in the world (iv) Five of these occur in India (v) High alien species invasion (vi) Cover less than 2% of the earth's land area, but if properly conserved, they can reduce extinctions by about 30% (a) (i) and (ii) (b) (iv) and (v) (c) iv), (v) and (vi) (d) (iii), (iv), (v) and (vi)

Which of the following statements regarding the ethical argument for conserving biodiversity is incorrect? (a) We owe to millions of plant, animal and microbes species with whom we share this planet (b) Every species has an intrinsic value only when it is of an economic value to us. (c) It is our moral duty to care for the well-being of all species i.e., our biological legacy. (d) All of these

USHA PUBLICATION-BIODIVERSITY & CONSERVATION -ECERCISE
  1. Extinctions which occurred due to big natural catastrophes is called :

    Text Solution

    |

  2. Anthropogenic extinction is causing the ' sixth extinction ' . It is ...

    Text Solution

    |

  3. The IUCN . Red list ( 2004 ) documents the extinction of ( A ) species...

    Text Solution

    |

  4. The colonisation of tropic pacific islands by humans have ' resulted i...

    Text Solution

    |

  5. Which of the following has undergone recent extinctions ?

    Text Solution

    |

  6. Following mass extinctions , recovery to the same level of biodiversit...

    Text Solution

    |

  7. Which of the following term includes all of the others ?

    Text Solution

    |

  8. Which of the following groups is most , threatened by global extinctio...

    Text Solution

    |

  9. Which term did Edward Osborne Wilson coin for our innate appreciation ...

    Text Solution

    |

  10. We should care about loss in biodiversity in the populations of other ...

    Text Solution

    |

  11. The most serious consequence of a decrease in global diversity would b...

    Text Solution

    |

  12. The most direct threat to biodiversity is :

    Text Solution

    |

  13. Introduced species can have deleterious effects on biological communit...

    Text Solution

    |

  14. Agricultural lands frequently require nutrient augmentation because :

    Text Solution

    |

  15. IUCN has its headquarters at :

    Text Solution

    |

  16. Which among the following category is most threatened ?

    Text Solution

    |

  17. Biodiversity act of India was passed in .

    Text Solution

    |

  18. The Critically Endangered and vulnerable plant species are respectivel...

    Text Solution

    |

  19. Arrange the following red - list categories provided by IUCN from high...

    Text Solution

    |

  20. The headquarter of IUCN - Red list is in

    Text Solution

    |