Quiz  /  Biodiversity and Conservation Class 12 MCQ Questions With Answers...

  • 1. 
    A species that is at serious risk of extinction is called a(n)

  • threatened species
  • invasive species
  • endangered species
  • extirpated species

  • 2. 
    By far, the biggest cause of biodiversity loss today is

  • climate change
  • over harvesting
  • habitat change and fragmentation
  • pollution

  • 3. 
    Species that are native to and found only within a limited area

  • endemic
  • exotic
  • endangered
  • extinct

  • 4. 
    A species that is not native to a particular region

  • endemic
  • exotic
  • endangered
  • extinct

  • 5. 
    The term diversity means

  • similarity
  • variety
  • Eastern
  • None of these

  • 6. 
    If current trends continue, the modern geologic era, known as the Quaternary period, may see the extinction of

  • almost 20% of all species
  • more than half of all species
  • all species on Earth
  • one or two species per century

  • 7. 
    The species that plays the biggest role in the habitat is?

  • Smaller species
  • Larger species
  • Keystone Species
  • Evolving species

  • 8. 
    What is the name of a common biodiversity index?

  • Living
  • Carr
  • Elton
  • Simpson

  • 9. 
    Alexander Von Humboldt observed that within a region species richness increased with increasing __________but only up to a limit.

  • Area
  • Food
  • Predators

  • 10. 
    Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?

  • individual
  • population
  • species
  • fossil

  • 11. 
    Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring?

  • Evolution
  • Variation
  • Adaptation
  • Natural Selection

  • 12. 
    Which product is often derived from the natural environment?

  • cooking oiol
  • medicines
  • fuel
  • all of the above

  • 13. 
    " Nature's Biological Library is burning even before we catalogued the titles of all the books stocked there". This implies that .....................

  • Nature has a library with books we did not read yet, and not catalogued. The library started to burn now.
  • The species present in nature are compared to books stocked in a library, and that a large fraction of these species are going to be extinct, even before we have discovered them.

  • 14. 
    A treaty is a(n)

  • state law to protect wildlife
  • agreement under international law
  • trade-off with landowners
  • biodiversity program run by zoos

  • 15. 
    Among animals, ____________are the most species rich taxonomic group.

  • mollusc
  • crustaceans
  • Insects
  • None of these
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