Punjab 12th Class Biology Chapter 25 Ecosystem MCQs Test Online

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Question 1 of 12

Biology

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

1.Synecology

2.Zoology

3.Embryology

4.Autecology

Question 1 of 12

Question 2 of 12

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

1.Niche

2.Population

3.Community

4.Species

Question 2 of 12

Question 3 of 12

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

1.Lithosphere

2.Ecosphere

3.Hygrosphere

4.Biosphere

Question 3 of 12

Question 4 of 12

4. The basic functional unit of ecology is:

1.Population

2.Ecosystem

3.Community

4.Niche

Question 4 of 12

Question 5 of 12

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

1.Biosphere

2.Ecosystem

3.Xerosere

4.Habitat

Question 5 of 12

Question 6 of 12

6. The abiotic component of an ecosystem is:

1.Consumer

2.Decomposers

3.Temperature

4.Producer

Question 6 of 12

Question 7 of 12

7. Biome is a:

1.Regional community

2.Climax community

3. Simple community

4.Complex community

Question 7 of 12

Question 8 of 12

8. Lithosphere includes:

1.Air

2.Earth Soil

3.Water

4.Gases

Question 8 of 12

Question 9 of 12

9. The basic functional unit of ecosystem is:

1.Species

2.Community

3.Ecosystem

4.Population

Question 9 of 12

Question 10 of 12

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

1.Community

2.Biosphere

3.Ecosystem

4.Microhabitat

Question 10 of 12

Question 11 of 12

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

1.Gerontology

2.Ecology

3.Autecology

4.Synecology

Question 11 of 12

Question 12 of 12

12. 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.Community

2.Biosphere

3.Population

4.Ecosystem

Question 12 of 12

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