An ecosystem is a structure that 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 structure in an ecosystem is in fact:

   A. Producer-consumer arrangement B. Refers to grazing food chain only C. Never forms a food web D. Never photosynthesis dependent...

4. Ecosystem has two components:

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

5. An ecosystem is: ___________?

   A. A community of organisms interacting with one another B. The abiotic component of an area C. The part of the earth and its atmosphere where living organisms exist D. A community of organisms together with the environment in which they live...

6. 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...

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

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

8. The gross production minus losses in an ecosystem is indicated as:

   A. Net production B. Secondary production C. Net storage D. Net primary production...

9. Energy enters into the ecosystem through:

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

10. Bacteria and fungi in a forest ecosystem are generally:

    A. Producers B. Decomposers C. Primary consumers D. Secondary consumers E. Tertiary consumers...