Related Mcqs:

1. 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

2. Last stable community in succession dependent on climate is:

   A. Seral community
   B. Climax community
   C. Both (a) & (b)
   D. None of these

3. During ecological succession from pioneers to climax community the biomass of vegetation:

   A. Increases, then decreases
   B. Remains constant
   C. Decreases continuously
   D. Increases continuously

4. The nature of a climax community depends upon:

   A. Water factor
   B. Temperature
   C. Soil fertility
   D. Climate

5. The nature of climax community ultimately depends upon:

   A. Climate
   B. Soil organism
   C. Bed rock
   D. Pool of available nutrients

6. The ultimate seral community appears in an area as a result of:

   A. Reaction
   B. Nudation
   C. Invasion
   D. Ecesis

7. In a hydrosphere the plants like Carex, Cyperus, and Juncus appear just after a community comprising:

   A. Lemna, Wolffia, Spirodela
   B. Nuphar, Nelumbo, Victoria
   C. Scirpus, Typha, Sagittaria
   D. Najas, Ceratophyllum, Elodea

8. The invasion of a new community in a bare area is initiated by:

   A. Migration
   B. Ecesis
   C. Aggregation
   D. All of these

9. The invasion of a community in succession involves:

   A. Ecesis, aggregation and competition
   B. Migration, aggregation and competition
   C. Aggregation, competition and coaction
   D. Migration, ecesis and aggregation

10. Which of the following describes a community?

    A. A list of species present (species structure and diversity indices
    B. Biomass of producers and consumers
    C. Autotrophic and heterotrophic measurements
    D. All of the above