New ! Biology MCQ Practise Tests

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

12th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Biology

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

    Multiple Choice Questions

    15 x 1 = 15
  1. The Species-Area relationship was given by ___________

    (a)

    Walter Rosen

    (b)

    Humboldt

    (c)

    Wilson

    (d)

    Darwin

  2. ___________ is not a exotic species.

    (a)

    Amazon sailfin catfish

    (b)

    Mealy Bug

    (c)

    Narcondam horn bills

    (d)

    Achatina fulica

  3. Death of _____________ population is attributed to the medicine Diclofenac.

    (a)

    Sparrow

    (b)

    Squirrel

    (c)

    Vulture

    (d)

    deer

  4. The red data book is maintained by ____________

    (a)

    WWF

    (b)

    ENVIS

    (c)

    IUCN

    (d)

    NBA

  5. Red list has _____________ categories.

    (a)

    7

    (b)

    6

    (c)

    8

    (d)

    12

  6. Kaziranga in Assam refers to a ______________

    (a)

    Protected areas

    (b)

    Wild life sanctuary

    (c)

    National park

    (d)

    both a and c

  7. The headquarters of National Biodiversity Authority is located in _______________

    (a)

    New Delhi

    (b)

    Dehradun

    (c)

    Chennai

    (d)

    Kolkata

  8. Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as

    (a)

    In situ conservation of biodiversity

    (b)

    Advanced ex situ conservation of biodiversity

    (c)

    In situ conservation by sacred groves

    (d)

    In situ cryo-conservation of biodiversity

  9. The most important pattern of biodiversity is________

    (a)

    Longitudinal gradient in diversity

    (b)

    Latitudinal gradient in diversity

    (c)

    Polar gradient diversity

    (d)

    Equatorial gradient in diversity

  10. Select the proper sequence indicating the increasing order of biodiversity.

    (a)

    Polar, Temperate and Polar

    (b)

    Tropics, Temperate and Polar

    (c)

    Temperate, Tropic and Polar

    (d)

    Polar, Tropic and Temperate

  11. Tilapia fish (Oreoehromis mosambieus) is exotic breed from_______

    (a)

    Mexico

    (b)

    South Africa

    (c)

    Canada

    (d)

    Central America

  12. Mention the correct number of biodiversity hotspots identified throughout the world.

    (a)

    29

    (b)

    16

    (c)

    34

    (d)

    46

  13. Statement 1: Biodiversity is the assemblage of different life form.
    Statement 2: The term biodiversity was introduced by Edward Wilson.

    (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

  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. Extinction of Dodo bird and extinction of Calvaria tree is the example of:

    (a)

    Mass extinction

    (b)

    Co-extinction

    (c)

    Over exploitation

    (d)

    Exotic species invasion

  16. 2 Marks

    10 x 2 = 20
  17. What are the three levels of biodiversity?

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

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

  20. What is species richness? Give example.

  21. Define species extinction. What makes a species to become extinct?

  22. Mention any four categories of species mentioned in Red data book.

  23. Define in-situ conservation.

  24. Name few endangered species protected in Arignar Anna Zoological Park.

  25. What may be the reasons for the entry of wild lives into the agrtculatural lands or towns?

  26. Mention any two species that had become extinct very recently.

  27. 3 Marks

    10 x 3 = 30
  28. What are exotic species?

  29. Why is extinction of species considered to be the most severe aspect in loss of biodiversity?

  30. What is Red Data Book or Red list?

  31. What is Anthropogenic extinction?

  32. What is National Park?

  33. What are off site collections?

  34. Write a note on Sacred Groves.

  35. Impact of Industrialization on Biodiversity - Comment.

  36. Compare Alpha diversity with Beta diversity.

  37. State the principle of Stockholm declaration - 1972.

  38. 5 Marks

    7 x 5 = 35
  39. Alien species invasion is a threat to endemic species – substantiate this statement.

  40. In north eastern states, the jhum culture is a major threat to biodiversity – substantiate.

  41. List out the various causes for biodiversity losses

  42. Give an account on genetic diversity and community diversity.

  43. Point out any 5 functional attributions of biodiversity.

  44. Explain in detail about various types of extinctions.

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

*****************************************

TN 12th Standard Biology free Online practice tests

Reviews & Comments about 12th Standard Bio-Zoology English Medium Biodiversity and its Conservation Reduced Syllabus Important Questions 2021

Write your Comment