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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Biology - 12th Class Biology Chapter 25 Short Questions Preparation

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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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

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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12th Class Biology Chapter 25 Short Questions Preparation - Set 2

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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12th Class Biology Chapter 25 Short Questions Preparation - Set 3

Question # 1

Define food web,give its significance.

  • Ans 1: Food Web: All the food chains interconnected or linked together to form food web.
  • Ans 2: Significance: The variety of pathways helps to maintain the stability of the ecosystem.Many alternate source of food are available to an organism,if one is not available the other can be used as food source.
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12th Class Biology Chapter 25 Short Questions Preparation - Set 4

Question # 1

Define lichens. Or What are lichens?

  • Ans 1: Lichens:It is the association between algae and fungi.Fungi give protection to algae from dessication while algae perform photosynthesis and provide nutrition to algae.
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12th Class Biology Chapter 25 Short Questions

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