Ecosystem contains:

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. Ecosystem has two components:

   A. Plants and animals B. Weeds and trees C. Biotic and abiotic D. Frogs and men...

4. Ecosystem is: ____________?

   A. Both open and closed unit depending upon the biomass present B. Closed unit C. Open unit D. Both open and closed unit depending upon community type...

5. The minimum number of components required for an ecosystem to survive:

   A. Producer and primary consumer B. Producer and decomposer C. Primary consumer and decomposer D. Primary and secondary consumer E. Producer and secondary consumer...

6. The gross primary production is maximum in the following ecosystem:

   A. Open sea B. Grasslands and pastures C. Coniferous forests D. Tropical and sub-tropical forest...

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

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

8. In a forest ecosystem, green plants are:

   A. The primary producers B. Primary producers only sometimes C. The decomposers D. The consumers...

9. 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...

10. Energy enters into the ecosystem through:

    A. Herbivores B. Carnivores C. Producers D. Decomposers...