Causes of plant succession are:

Related Mcqs:

1. Plant succession means:

   A. A change in the composition and nature of plant community of particular habitat over the years
   B. Any habitat can be studied systematically provided the area is free from any external disturbance
   C. Both (a) & (b)
   D. None of these

2. Classification of plant succession categorised as:

   A. Primary succession
   B. Secondary succession
   C. Both (a) & (b)
   D. None of these

3. The last stage of plant succession is:

   A. Ecotone
   B. Climax stage
   C. Seral community
   D. Ecotype

4. Due to modification of the environment by the plant community itself, when one community is replaced by another suitable community, the succession is called:

   A. Induced
   B. Deflated
   C. Allogenic
   D. Autogenic

5. If a piece of land which had a plant community becomes barren due to some external thrust, the succession taking place here is called:

   A. Induced
   B. Deflated
   C. Secondary
   D. Retrogessive

6. Plant succession taking place in sandy area is precisely called:

   A. Halosphere
   B. Psammosphere
   C. Xerosphere
   D. Hydrosphere

7. A complex of several species and communities in various stages of succession maintained under similar climatic conditions is known as:

   A. Biome
   B. Environmental complex
   C. Biological spectrum
   D. Biological clocks

8. The community which begins succession in a habitat is designated as:

   A. Seral community
   B. Biotic community
   C. Pioneer community
   D. Ecosere

9. The ecological succession occurring as population 1 ? 2 ? 3 ? 4 indicates

   A. Cyclic succession
   B. Induced succession
   C. Retrogressive succession
   D. Allogenic succession

10. The last community in a succession is called:

    A. Ecosystem
    B. Climatic community
    C. Ecotons
    D. Seral community