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Botany - Ecosystem 5 Mark Creative Question Paper With Answer Key

12th Standard

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Biology

Time : 02:30:00 Hrs
Total Marks : 75

    3 Marks

    15 x 5 = 75
  1. Explain various steps involved in decomposition (or) Write the steps involved in the mechanism decomposition. 

  2. Write an essay on pond ecosystem.

  3. Write a note on the strategies of ecosystem management.

  4. List out the characteristics of ecological succession.

  5. Differentiate Primary succession and Secondary succession.

  6. Write in detail about Autogenic succession and Allogenic succession.

  7. Bring out the importance of plant succession.

  8. Define productivity & its type. (or) How to protect the ecosystem? (or) Explain the different classes of productivity of an ecosystem.

  9. Write a flowchart on the types of ecosystem services.

  10. Explain the comprises of two major ecological components.

  11. Describe Photosynthetically Active Radiation (PAR).

  12. Describe two types of food chain.

  13. What is Biogeochemical cycle? Explain.

  14. Explain how to Anthropogenic activities affect ecosystem services.

  15. Short notes on
    (a) Plant succession
    (b) Pioneers
    (c) Seralcommttnities

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