In natural ecosystem, decomposers include:

Related Mcqs:

1. In natural ecosystem, decomposers include:

   A. Only bacteria and fungi
   B. Only microscopic animals
   C. The above two types of organisms plus macroscopic animals
   D. Only the above two types of organisms

2. The decomposers in an ecosystem constitute the following trophic level:

   A. T1
   B. T3
   C. T5
   D. T4

3. If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected because:

   A. Herbivores will not receive solar energy
   B. Rate of decomposition of other component will be very high
   C. Mineral movement will be blocked
   D. Energy flow will be blocked

4. Decomposers are:

   A. Autotrophs
   B. Heterotrophs
   C. Organotrophs
   D. Auto heterotrophs

5. 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

6. 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

7. Biotic components of an ecosystem include:

   A. Producers only
   B. Consumers only
   C. Producers and Consumers only
   D. Producers, consumers and decomposers

8. Hazards include all those factors that can injure or kill an animal (natural factors)

   A. Fire, rain and wind as well as man made structures such as roads and fences
   B. Thus challenging an animal’s physiological capacity as to prevent it from reproducing successfully
   C. Both (a) & (b)
   D. None of these

9. In a terrestrial ecosystem such as forest maximum energy lies in which trophic level?

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

10. Components of ecosystem are:

    A. Abiotic
    B. Biotic
    C. Both (a) & (b)
    D. None of these