The modes of Perennation are:

Related Mcqs:

1. The word ecosystem was coined by:

   A. Daubenmire/R.Misra/Koestle
   B. Tansley
   C. Weaver and Clements
   D. Odum/Kormondy

2. The significance of ecosystem lies in:

   A. Flow of energy
   B. Cycling of matters
   C. Both (a) & (b)
   D. None of the above

3. Ecological pyramids are of:

   A. Two types
   B. Three types
   C. Four types
   D. Five types

4. The non-green plants are as important as the green plants because they:

   A. Cause human disease
   B. Cause diseases of other plants
   C. Are useful in several industries
   D. Bring about decomposition of dead animals and plant remains

5. The flow of materials and energy in an ecosystem is respectively:

   A. Cyclic only
   B. Cyclic and linear
   C. Linear and cyclic
   D. Linear only

6. Energy transfer from one trophic level to other in a food chain is:

   A. 1%
   B. 2%
   C. 10%
   D. 20%

7. Energy enters into the ecosystem through:

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

8. The temperate broad-leaf forest biomes are characterized by the predominance of

   A. Cupressus sp.
   B. Dalbergia sp.
   C. Diospyros sp.
   D. Quercus sp.

9. Hygrophytes (Moisture loving plants) means:

   A. The pants are usually stunted in growth
   B. Roots and stem are poorly developed
   C. Leaves are large and tend to avoid water less lam transpiration
   D. All of the above

10. In which system that the regeneration of the compartment is started form natural foci or groups of advance growth?

    A. Uniform system
    B. Group system
    C. Clear strip system
    D. None of these