Niche of a species in an ecosystem refers to its:

Related Mcqs:

1. 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

2. 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

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 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

5. The cybernetics of an ecosystem refers to:

   A. Harvest index
   B. A feedback mechanism
   C. Regulation of equilibrium
   D. Reverse energy flow

6. The term homeostasis in an ecosystem refers to:

   A. A feedback mechanism
   B. A self-regulatory mechanism
   C. State of equilibrium
   D. Influence of production

7. Wildlife generally refers to all species of:

   A. Mammals
   B. Birds
   C. Reptiles
   D. Amphibians
   E. All of the above

8. 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

9. The number of sampling units expressed in percentage in which a particular species occurs is called its:

   A. Abundance
   B. Density
   C. Frequency
   D. Phenology

10. The number of individuals of a species per sampling unit is called its:

    A. Biomass
    B. Abundance
    C. Density
    D. Frequency