A community is:

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 community which begins succession in a habitat is designated as:

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

5. 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

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

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

7. 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

8. 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

9. The last community in a succession is called:

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

10. Community is:

    A. A group of independent and integrating populations of different species
    B. A group of independent and interacting populations of same species
    C. A group of a independent and interacting populations of same species in a specific area
    D. A group of independent and interacting populations of different species in a specific area