Punjab 12th Class Biology Chapter 25 Ecosystem MCQs Test Online

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Question 1 of 12

Biology

1. A localized group of species belonging to the same species is called as (Any group of interbreeding organisms of same species that exist together in both time and space is called):

1.Population

2.Ecosystem

3.Community

4.Biosphere

Question 1 of 12

Question 2 of 12

2. Biome is a:

1.Regional community

2.Climax community

3.Complex community

4. Simple community

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Question 3 of 12

3. Populations of different species (plants and animals) living in the same habitat form a:

1.Community

2.Microhabitat

3.Biosphere

4.Ecosystem

Question 3 of 12

Question 4 of 12

4. Lithosphere includes:

1.Air

2.Water

3.Earth Soil

4.Gases

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Question 5 of 12

5. The whole of the world's land is called:

1.Hygrosphere

2.Biosphere

3.Ecosphere

4.Lithosphere

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Question 6 of 12

6. Study of relationship of different communities to environment is called:

1.Zoology

2.Autecology

3.Embryology

4.Synecology

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Question 7 of 12

7. The basic functional unit of ecosystem is:

1.Community

2.Population

3.Ecosystem

4.Species

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Question 8 of 12

8. A group of inter-breeding individuals occurring together in a space and time is called:

1.Community

2.Species

3.Niche

4.Population

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Question 9 of 12

9. The basic functional unit of ecology is:

1.Ecosystem

2.Population

3.Niche

4.Community

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Question 10 of 12

10. The abiotic component of an ecosystem is:

1.Consumer

2.Temperature

3.Producer

4.Decomposers

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Question 11 of 12

11. Study of single population's relationship to environment is called:

1.Gerontology

2.Autecology

3.Ecology

4.Synecology

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Question 12 of 12

12. A thin layer of earth in which all living organisms exists is called:

1.Ecosystem

2.Habitat

3.Biosphere

4.Xerosere

Question 12 of 12

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