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:

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. Niche of a species in an ecosystem refers to its:

   A. Place of occurrence
   B. Competitive ability
   C. Centre of origin
   D. Function at its place of occurrence

3. The number of individuals of a species in a particular ecosystem at a given constant due to:

   A. Man
   B. Parasites
   C. Predators
   D. Available food

4. The important features of evaluation of site for plantation purposes are:

   A. Geomorphology
   B. Soil features
   C. Hydrologic features
   D. Vegetation features
   E. All of the above

5. The major types of thinning in mixed plantation are:

   A. Selection
   B. Trees to be felled
   C. Improvement felling
   D. All of the above

6. The species characteristics are an expression of the genetic make up of an animal species influencing the extend and nature of ______.

   A. Home range, breeding season
   B. Longevity, territory and the niche
   C. Both (a) & (b)
   D. None of these

7. The cycling of elements in an ecosystem is called:

   A. Chemical cycle
   B. Biogeochemical cycle
   C. Geological cycle
   D. Geochemical cycle

8. The river mouth ecosystem is called:

   A. Estuarine
   B. Lotic
   C. Lentic
   D. None of these

9. The ecosystem lying in the alpine zone between taiga and polar ice is called:

   A. Savana
   B. Autotrophic
   C. Heterotrophic
   D. Tundra

10. Food levels in an ecosystem are called:

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