Biology Ecosystem Test Online MCQs

1. Mycorrhiza help in absorption of

2. The plants which can withstand narrow range of temperature tolerance are called

3. Trophic levels are formed by:

4. An ecosystem, such as an aquarium, is self-sustaining if it involves the interaction between organisms, a flow of energy, and the presence of

5. Obligate parasites live on

6. The maintenance of internal favorable conditions, by a self regulated mechanisms inspite of the fact that there are changes in environment, is known as

7. Territoriality occurs as a result of

8. The symbiotic relationship of algae and fungus is found in

9. Which one of the following is correct matching of a plan, its habit and forest type where it normally occurs?

10. Which part of the world has a high density of organism?

11. 10 % law of energy transfer was given by

12. Abundance of a species in a population, within habitat is called

13. A lake with an inflow of domestic sewage rich in organic waste may result in

14. The great barrier reef along the east coast of Australia can be categorized as

15. The function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to