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प्रश्न
Define Niche.
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उत्तर
Niche describes the position of a species in an environment and also the functional role played by an organism.
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संबंधित प्रश्न
Select the statement which explains best parasitism.
Name the type of association: Crow feeding the hatchling of Koel
Name the type of association: Hummingbirds and host flowering plants
Define Absolute Mortality.
Explain different population interactions with examples.
What is population interaction? Explain the interactions in Mutualism and Competition.
Tabulate and analysis of two species population interaction.
Mutualism can be represented as the interaction between ____________.
Identify the interspecific interaction which one species is benefited and other is neither banned nor benefited.
Parasitism can be conectly represented as ____________.
Exarch xylem is found in:
The presence or interference of one species leads to reduction in feeding efficiency of other species is termed as
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
Between which among the following, the relationship is not an example of
?
Interaction between clown fish living among the stinging tentacles of sea anemone is an example of ______.
Observe the graph given below.
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The graph represents inter-specific interaction between two species of Paramecia competing for the same resource in a culture medium. Paramecium caudatum and Paramecium aurelia were grown in separate cultures as well as in mixed cultures. It was found that each species grew in numbers according to the logistic equation.
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a) Which species is competitively superior? Support it with the data provided in the graph.
b) State the underlying principle for the above result and name the scientist associated with this principle.
c) Explain the mechanism in which two or more species competing with each other can co-exist.
OR
Graphs A and B shown below depict interaction of two species. Which graph indicates Mutualism? Give reason.
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 |
| A | B |
Give one example of commensalism.
Explain one type of mutualism.
Which one of the following statement INCORRECT regarding competition?
Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the correct answer from the options given below:
