The vertical layering of organisms corresponds to:
The keystone species are those which exhibit:
The mycorrhizae present in association with higher plant roots are best described as:
The number of individuals of a species per sampling unit is called its:
The number of sampling units expressed in percentage in which a particular species occurs is called its:
The earliest settlers on barren lands generally are:
When the vegetation of any region reaches climatic climax, it is:
The herb stage in a lithosphere is immediately followed by plants like:
The last community in a succession is called:
Many forested regions of today were once barren rock areas. Mot likely this change involved the following sequence of stages:
The herb stage in a lithosphere has predominance of plants like
Plant succession taking place in sandy area is precisely called:
The climax vegetation in a lithosere of temperate zone is dominated by plants like:
If a piece of land which had a plant community becomes barren due to some external thrust, the succession taking place here is called:
The physiographic factor responsible for the initiation of succession to:
The invasion of a community in succession involves:
The ecological succession was first studied by:
The term succession was coined by:
The invasion of a new community in a bare area is initiated by:
When the substratum has ample of organic matter and there are many deterivore participating in the process, the succession is called:
According to polyclimax hypothesis, the climax stage is controlled by:
The ecological succession occurring as population 1 ? 2 ? 3 ? 4 indicates
In a hydrosphere the plants like Carex, Cyperus, and Juncus appear just after a community comprising:
Mark the correct sequence of events occurring during ecological succession:
The direction of succession is:
Mark the climatic cause for the initiation of succession:
Due to modification of the environment by the plant community itself, when one community is replaced by another suitable community, the succession is called:
The effect of individuals of the same species upon each other is called:
The ultimate seral community appears in an area as a result of:
When the process of succession sidetracks the advancement line, it is called:
Mark the pioneer in a hydrosphere:
In a hydrosere, the submered stage is followed by:
The biotic factor not involved in the succession:
The woodland stage in a hydrosphere has predominance of plants like:
Which of the following is a piopcer in a lithosere?
Primary succession refers to the development of communities on a:
The nature of climax community ultimately depends upon:
The sequence: blue green algae – crustose lichen – foliose lichen – mosses – shrubs – dicot trees represent
Which of the following communities is more vulnerable to invasion by outside animals and plants?
Which part of the world has a high density of organism?
The community which begins succession in a habitat is designated as:
Which of the following is not a primary coloniser?
A succession exhibiting changes in the communities at a place is described as:
The nature of a climax community depends upon:
During ecological succession from pioneers to climax community the biomass of vegetation:
Which one is called amphibious plant?
The last stage of plant succession is:
In an aqueous environment, the microscopic animals are collectively called:
The primary succession refers to the development of communities on a:
A place was rocky and barren but now there is a green forest; the sequence of origin is:
Last stable community in succession dependent on climate is:

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

Correct Answer: A group of independent and interacting populations of different species in a specific area ✔

Last Updated: May 23, 2024