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12th Standard Bio-Zoology English Medium Biodiversity and its Conservation Reduced Syllabus Important Questions With Answer Key 2021

12th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 100

    Multiple Choice Questions

    15 x 1 = 15
  1. Who introduced the term biodiversity?

    (a)

    Edward Wilson

    (b)

    Walter Rosen

    (c)

    Norman Myers

    (d)

    Alice Norman

  2. Which one of the following are at high risk extinction due to habitat destruction

    (a)

    Mammals

    (b)

    Birds

    (c)

    Amphibians

    (d)

    Echinoderms

  3. There are ________ mega biodiversity countries in the world

    (a)

    15

    (b)

    12

    (c)

    17

    (d)

    10

  4. The grizzled squirrel and lion tailed Macaque are endemic to _____________

    (a)

    Semi-Arid zone

    (b)

    Indian Desert

    (c)

    Western Ghats

    (d)

    Eastern Ghats

  5. ___________ is a biographical gateway for much of India's flora and fauna.

    (a)

    North East India

    (b)

    Coastal Region

    (c)

    Trans Himalayan region

    (d)

    Sunderbans

  6. IUCN has its headquarters in _______________

    (a)

    New York

    (b)

    New Delhi

    (c)

    Columbia

    (d)

    Switzerland

  7. The red data book is maintained by ____________

    (a)

    WWF

    (b)

    ENVIS

    (c)

    IUCN

    (d)

    NBA

  8. Project tiger was first launched in ____________

    (a)

    1973

    (b)

    1978

    (c)

    1999

    (d)

    2001

  9. Mundanthurai wild life sanctuary is located in ___________ district.

    (a)

    Coimbatore

    (b)

    Tirunelveli

    (c)

    Kancheepuram

    (d)

    Nagapattinam

  10. The highest number of species in the world is represented by

    (a)

    Fungi

    (b)

    Mosses

    (c)

    Algae

    (d)

    Lichens

  11. Which of the following is not used for ex situ plant conservation?

    (a)

    Field gene banks

    (b)

    Seed banks

    (c)

    Shifting cultivation 

    (d)

    Botanical gardens

  12. Total number of mega biodiversity countries in the world is_________

    (a)

    Twelve

    (b)

    Fifteen

    (c)

    Seventeen

    (d)

    Nineteen

  13. How many number of biogeographic zones are there in India?

    (a)

    Twelve

    (b)

    Seventeen

    (c)

    Ten

    (d)

    Fifteen

  14. Statement 1: Exotic species are the non-native organism.
    Statement 2: Sailfin catfish is an exotic species to India

    (a)

    Statement 1 is correct, statement 2 in incorrect

    (b)

    Statement 1 is incorrect, statement 2 in correct

    (c)

    Both the statements are correct

    (d)

    Both the statements are incorrect

  15. IUCN is an organisation working in the of nature conservation. It is located in

    (a)

    Washington, USA

    (b)

    London, England

    (c)

    Stockholm, Sweden

    (d)

    Gland VD, Switzerland

  16. 2 Marks

    10 x 2 = 20
  17. How many hotspots are there in India? Name them

  18. What are the three levels of biodiversity?

  19. “Amazon forest is considered to be the lungs of the planet”- Justify this statement.

  20. Why do animals have greater diversification than plant diversity?

  21. What is ecosystem/community diversity?

  22. Give an equation for Species-Area relationship on a log scale

  23. Name the types of extinctions.

  24. Mention any 4 categories of.species in Red list.

  25. What is species richness? Give example.

  26. Enlist the factors that determine the distribution of biodiversity.

  27. 3 Marks

    10 x 3 = 30
  28. Compare and Contrast the insitu and exsitu conservation.

  29. What are called endangered species? Explain with examples

  30. Why do we find a decrease in biodiversity distribution, if we move from the tropics towards the poles?

  31. What are the factors that drive habitat loss?

  32. Why has the dodo become extinct?

  33. What is Co-extinction?

  34. What is extinction?

  35. What is Red Data Book or Red list?

  36. Give examples of any three Wild Life Sanctuaries in Tamilnadu.

  37. What is a biosphere reserve?

  38. 5 Marks

    7 x 5 = 35
  39. Write a note on
    i) Protected areas,
    ii) Wild life sanctuaries,
    iii) WWF.

  40. Write the general strategies in conservation?

  41. Why Tropical regions are rich in biodiversity?

  42. What is the significance of slope of regression in a species area relationship?

  43. Explain in detail about various types of extinctions.

  44. Give comparative account on ex-situ conservation.

  45. Mention the reasons for the richness biodiversity in the tropics.

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