Fsc Part 2 Online Preparation for Biology Chapter No 25 (Ecosystem)

Online Short Questions For Chapter 11 "12th Class Biology Chapter 25 Short Questions Preparation "

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  • Total Questions10

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Biology - 12th Class Biology Chapter 25 Short Questions Preparation

Question # 1

What are biogeochemical cycles?Give an example.

  • Ans 1: Circular movement or recycling of the elements between the organism and the environment is called biogeochemical cycle.
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Prepare Complete Set Wise Questions For Chapter 11 "12th Class Biology Chapter 25 Short Questions Preparation "

12th Class Biology Chapter 25 Short Questions Preparation - Set 1

Question # 1

What are biogeochemical cycles?Give an example.

  • Ans 1: Circular movement or recycling of the elements between the organism and the environment is called biogeochemical cycle.
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12th Class Biology Chapter 25 Short Questions Preparation - Set 2

Question # 1

Define humus.

  • Ans 1: Humus is the decomposed organic matter formed by decomposers after the decomposition of dead bodies.
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12th Class Biology Chapter 25 Short Questions Preparation - Set 3

Question # 1

Give the role of decomposers in an ecosystem.

  • Ans 1: Decomposers are the organisms which decompose the dead bodies are called decomposers;they recycle the nutrients and make them available for plant growth.
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12th Class Biology Chapter 25 Short Questions Preparation - Set 4

Question # 1

Differentiate between secondary and primary succession.

  • Ans 1: Primary succession: Primary succession is the process of succession which starts on a bare rock or dry place where no life exists earlier is called primary succession.
  • Ans 2: Secondary succession: Secondary succession is the process which starts on a place where life exists but sue to some reasons it is destroyed is called secondary succession.
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25th Chapter

12th Class Biology Chapter 25 Short Questions

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