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Biology Ecosystem Online Quiz Test MCQs

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. Driving force of ecosystem is:

Question 2 of 15

3. Succession begins by a few hardy invaders called:

Question 3 of 15

4. An example of decomposer is:

Question 4 of 15

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

Question 5 of 15

6. Major unit of ecology is:

Question 6 of 15

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

Question 7 of 15

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

Question 8 of 15

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

Question 9 of 15

10. Absence of lichens indicates atmospheric pollution by:

Question 10 of 15

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

Question 11 of 15

12. Which is the best source of renewable energy?

Question 12 of 15

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

Question 13 of 15

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

Question 14 of 15

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

Question 15 of 15


You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.


  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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