12 Class Fsc Part 2 Short Questions Online Preparation Biology

Online Short Questions For Chapter 12 "12th Class Biology Chapter 26 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 26 Short Questions Preparation

Question # 1

Differentiate between limnetic zone and profundal zone.

  • Ans 1: Limentic zone: In this zone adequate or enough light penetrates to support photosynthesis.In this zone mainly cyanobacteria,protozoa,small crustaceans and fishes are present.
  • Ans 2: Profundal zone: In this zone light is insufficient to support photosynthesis.This area is mainly nourished by detritus that fall from littoral and limnetic zone.Here mostly decomposers and detritivores like snail,certain insect larvae,bacteria,fungi and fish inhabit.
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Prepare Complete Set Wise Questions For Chapter 12 "12th Class Biology Chapter 26 Short Questions Preparation "

12th Class Biology Chapter 26 Short Questions Preparation - Set 1

Question # 1

Differentiate between limnetic zone and profundal zone.

  • Ans 1: Limentic zone: In this zone adequate or enough light penetrates to support photosynthesis.In this zone mainly cyanobacteria,protozoa,small crustaceans and fishes are present.
  • Ans 2: Profundal zone: In this zone light is insufficient to support photosynthesis.This area is mainly nourished by detritus that fall from littoral and limnetic zone.Here mostly decomposers and detritivores like snail,certain insect larvae,bacteria,fungi and fish inhabit.
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12th Class Biology Chapter 26 Short Questions Preparation - Set 2

Question # 1

What is layering in grassland?

  • Ans 1: Due to difference in height of grasses layering is formed.It is characteristic of grass land ecosystem.Three layers are formed.Tall grasses form first layer,mid high grasses form second layer and third is formed by short grasses.
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12th Class Biology Chapter 26 Short Questions Preparation - Set 3

Question # 1

Differentiate between limnetic zone and profundal zone.

  • Ans 1: Limentic zone: In this zone adequate or enough light penetrates to support photosynthesis.In this zone mainly cyanobacteria,protozoa,small crustaceans and fishes are present.
  • Ans 2: Profundal zone: In this zone light is insufficient to support photosynthesis.This area is mainly nourished by detritus that fall from littoral and limnetic zone.Here mostly decomposers and detritivores like snail,certain insect larvae,bacteria,fungi and fish inhabit.
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12th Class Biology Chapter 26 Short Questions Preparation - Set 4

Question # 1

Write major ecosystem in Pakistan. OR Enlist major ecosystem in Pakistan.

  • Ans 1: Major ecosystem of Pakistan are
  • Ans 2: a) Temperate deciduous forests
    b) Coniferous alpine and boreal forests
    c) Grassland ecosystem
    d) Desert ecosystem
    e) Tundra ecosystem
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26th Chapter

12th Class Biology Chapter 26 Short Questions

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