Punjab 12th Class Biology Chapter 25 Ecosystem MCQs Test Online

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Question 1 of 12

Biology

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

1.Microhabitat

2.Community

3.Ecosystem

4.Biosphere

Question 1 of 12

Question 2 of 12

2. 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.Ecosystem

2.Population

3.Community

4.Biosphere

Question 2 of 12

Question 3 of 12

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

1.Biosphere

2.Ecosystem

3.Xerosere

4.Habitat

Question 3 of 12

Question 4 of 12

4. The basic functional unit of ecology is:

1.Ecosystem

2.Population

3.Community

4.Niche

Question 4 of 12

Question 5 of 12

5. Biome is a:

1.Climax community

2. Simple community

3.Complex community

4.Regional community

Question 5 of 12

Question 6 of 12

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

1.Species

2.Niche

3.Population

4.Community

Question 6 of 12

Question 7 of 12

7. The basic functional unit of ecosystem is:

1.Community

2.Population

3.Ecosystem

4.Species

Question 7 of 12

Question 8 of 12

8. The abiotic component of an ecosystem is:

1.Decomposers

2.Temperature

3.Producer

4.Consumer

Question 8 of 12

Question 9 of 12

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

1.Synecology

2.Gerontology

3.Ecology

4.Autecology

Question 9 of 12

Question 10 of 12

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

1.Ecosphere

2.Lithosphere

3.Hygrosphere

4.Biosphere

Question 10 of 12

Question 11 of 12

11. Lithosphere includes:

1.Air

2.Earth Soil

3.Gases

4.Water

Question 11 of 12

Question 12 of 12

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

1.Synecology

2.Autecology

3.Zoology

4.Embryology

Question 12 of 12

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