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

Question 1 of 15

2. A pollutant which causes mental illness is:

Question 2 of 15

3. Absence of lichens indicates atmospheric pollution by:

Question 3 of 15

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

Question 4 of 15

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

Question 5 of 15

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

Question 6 of 15

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

Question 7 of 15

8. Major unit of ecology is:

Question 8 of 15

9. Driving force of ecosystem is:

Question 9 of 15

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

Question 10 of 15

11. An example of decomposer is:

Question 11 of 15

12. Succession begins by a few hardy invaders called:

Question 12 of 15

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

Question 13 of 15

14. Which is the best source of renewable energy?

Question 14 of 15

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

Question 15 of 15


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