The driving force of the ecosystem is:

Related Mcqs:

1. 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

2. 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

3. The trophic level of lion is a forest ecosystem is:

   A. T3
   B. T4
   C. T2
   D. T1

4. In an ecosystem, the population of:

   A. Primary producers is larger than that of primary consumers
   B. Secondary consumers is the largest because they are the most powerful
   C. Primary consumers outnumber primary producers
   D. Primary consumers is the least dependent upon primary producers

5. The pyramid of numbers in a grassland ecosystem will be:

   A. Linear
   B. Upright
   C. Irregular
   D. Inverted

6. The pyramid of biomass in a shallow pond ecosystem is:

   A. Inverted
   B. Upright
   C. Rhomboidal
   D. Liver

7. An ecosystem is a structure that is:

   A. Always temporary
   B. Always permanent
   C. Either of these
   D. Rarely permanent

8. Food levels in an ecosystem are called:

   A. Trophic levels
   B. Consumer levels
   C. Producer levels
   D. Herbivores levels

9. Which is the most stable ecosystem?

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

10. Forest Ecosystem means:

    A. The produces in forest are actual at different strata from the ground level to the canopy of trees.
    B. The litter and consequently the humus layers is thick
    C. Both (a) & (b)
    D. None of these