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Biology Ecosystem Online Quiz Test MCQs

Test Instructions

Test Name : Ecosystem Test
Subject : Biology General
Test Type : Mcqs
Total Question : 15
Total Marks : 30
Total Time : 20 Minutes

An ecosystem is a community of living organisms in conjunction with the non-living components of their environment, interacting as a system. To to help you in checking your level of knowledge about this topic, given below is a free online quiz about Ecosystem.

Biology Ecosystem Online Quiz Test MCQs


1. A pollutant which causes mental illness is:

Question 1 of 15

2. Major unit of ecology is:

Question 2 of 15

3. Succession begins by a few hardy invaders called:

Question 3 of 15

4. Extinction of a species in a food chain is compensated by:

Question 4 of 15

5. Actual place or location where an organism lives is called its:

Question 5 of 15

6. Primary succession that starts in a pond is called:

Question 6 of 15

7. An example of decomposer is:

Question 7 of 15

8. Driving force of ecosystem is:

Question 8 of 15

9. Which is the best source of renewable energy?

Question 9 of 15

10. An organism that feed on dead organic matter other than bacteria or fungi is called:

Question 10 of 15

11. Which animals show no inter relationship (i.e.,neutralism)?

Question 11 of 15

12. The transfer of energy from one trophic level to another is called as:

Question 12 of 15

13. Absence of lichens indicates atmospheric pollution by:

Question 13 of 15

14. In the coming years, skin = related disorders will be more common due to:

Question 14 of 15

15. Primary succession that starts on a dry soil or rock is called:

Question 15 of 15


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  1. Got 93%…It is a good website to test yourself…

  2. 100% as usual :p

  3. Primary succession that starts on a dry soil or rock is called xerosere not derosere

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