NEET Foundation-Zoology-Ecology and Environment Test-4 - Mahatmaacademy.com

NEET Foundation-Zoology-Ecology and Environment Test-4

NEET Foundation-Zoology-Ecology and Environment Test-4

1. Amount of living material and nutrients present in different trophic levels and soils at any give time are called respectively

 
 
 
 

2. Biogeochemical cycle having a small gaseous component is found in

 
 
 
 

3. In which of the following biogeochemical cycles, atmospheric phase is absent/ negligible?

 
 
 
 

4. An ecosystem is a complex interacting system of

 
 
 
 

5. Ecosystem has two components

 
 
 
 

6. Lion is a

 
 
 
 

7. Unit of biosphere is………..

 
 
 
 

8. Which of the following belong to the category of primary consumers?

 
 
 
 

9. Which has greatest biomass in terrestrial ecosystem ?

 
 
 
 

10. The organisms that thrive upon the remains of dead plants and animals are catogorised as

 
 
 
 

11. In recycling of mineral elements within an ecosystem the responsible direct acting organisms are called

 
 
 
 

12. Decomposers (micro-consumers which are also called reducers, transducers, osmotrophs and saprotrophs) are must in an ecosystem for

 
 
 
 

13. The energy storage at producer level which can be consumed by herbivore

 
 
 
 

14. Which of the following statement about decomposition is incorrect?

 
 
 
 

15. Most important climatic factors that regulate the rate of decomposition are

 
 
 
 

16. About how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis

 
 
 
 

17. Flow of energy declines from lower or first trophic level to upper or top trophic level in ecosystem is mainly explained by

 
 
 
 

18. A food chain starts with……..

 
 
 
 

19. As biomass passes from one trophic level to another; the amount of total energy……..

 
 
 
 

20. In a food chain initial organisms are