Which is the most stable ecosystem?

Related Mcqs:

1. The pyramid that cannot be inverted in a stable ecosystem is the pyramid of:

   A. Energy
   B. Number
   C. Biomass
   D. All of these

2. Which is the most stable ecosystem?

   A. Desert
   B. Ocean
   C. Mountain
   D. Forest

3. In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:

   A. Primary and secondary consumers are similar
   B. Both biotic and abiotic components are different
   C. The biotic components are almost similar
   D. The abiotic components are almost similar

4. Exotic species, which brought for plantation from some other country to our country or even from one ecosystem to other ecosystem are called, as exotic species like:

   A. Pinus nigra – Japan
   B. Euralyptus – Australia
   C. Polunia – China
   D. All of the above

5. Last stable community in succession dependent on climate is:

   A. Seral community
   B. Climax community
   C. Both (a) & (b)
   D. None of these

6. The two major functional components of an ecosystem are:

   A. Energy flow and food chain
   B. Mineral recycling and energy flow
   C. Food chain and decomposers
   D. Energy flow and decomposers

7. What is contributed from the outer space in an ecosystem?

   A. All the atmospheric gases
   B. Only carbon, hydrogen and oxygen
   C. Energy only
   D. All the above components

8. The biotic and abiotic components of the ecosystem are connected through:

   A. Standing quality
   B. Climatic regime
   C. Transducers
   D. Humification and mineralization

9. Which of the following terms is not a synonym literally for ecosystem?

   A. Ectosome
   B. Ecosphere
   C. Microcosm
   D. Holocene

10. The cybernetics of an ecosystem refers to:

    A. Harvest index
    B. A feedback mechanism
    C. Regulation of equilibrium
    D. Reverse energy flow