A. Migration
B. Ecesis
C. Aggregation
D. All of these
Related Mcqs:
- 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 - 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 - Which of the following communities is more vulnerable to invasion by outside animals and plants?
A. Mangroves
B. Tropical evergreen forests
C. Temperate forests
D. Oceanic island communities - Soil formation is initiated by the phenomenon of:
A. Weathering
B. Gleization
C. Laterization
D. Pedogenesis - Soil erosion in plains consequent to rain fall is initiated by:
A. Rill erosion
B. Sheet erosion
C. Gully erosion
D. All of these - The necessary human resources could be developed through a combination of activities initiated with the objective of:
A. Improving data management
B. Monitoring and research to improve enforcement of legislation, both facilitative and regulatory
C. Implementing appropriate and multiple use strategies
D. All of the above - The community which begins succession in a habitat is designated as:
A. Seral community
B. Biotic community
C. Pioneer community
D. Ecosere - 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 - 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 - A community is:
A. A collection of plant and animals
B. Organism living in a habitat
C. Autotrophs and hetrotrophs
D. Web of life
The correct answer to the question: "The invasion of a new community in a bare area is initiated by:" is "Migration ".
