Biology Ecosystem Test Online MCQs

1. Territoriality occurs as a result of

2. The food chain in which microbes breakdown energy rich compounds synthesized by producers is called

3. The enzyme responsible for the reduction of molecular nitrogen to the level of ammonia in the leguminous root nodule is  

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

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

6. Mr. X is eating curd/yoghurt. For this food intake in a food chain Mr. X should be considered as occupying

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

8. Given below is one of the types of ecological pyramids. This type represents

9. Food chain starts with

10. A lizard-like member of reptila is sitting on a tree with its tail coiled around a twig. This animal could be

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

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

13. The trees occurring in two seasons is the characteristic feature of

14. Obligate parasites live on

15. July 11 is observed as