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प्रश्न
Define the following term:
Commensalism
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उत्तर १
An interaction in which one species benefits while the other is neither benefited nor harmed is called commensalism.
उत्तर २
Commensalism is the interaction between two living individuals of different species in which one is benefited while the other is neither harmed nor benefited except to a negligible extent.
संबंधित प्रश्न
Explain mutualism with the help of any two examples.
Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Name and explain the interaction that is seen between clownfish and sea anemones.
Association between sea anemone and Hermit crab in gastropod shell is that of.
Select the statement which explains the best parasitism.
What is the ecological process behind the biological control method of managing pest insects?
Distinguish between the following: Parasitism and Mutualism.
Define population.
The number of deaths under ideal conditions is known as ______.
Define Absolute Mortality.
What is commensalism? Explain it with a suitable example.
Define population growth. Explain different types of age pyramids.
What is population interaction? Explain the interactions in Mutualism and Competition.
Which principle/theory states that 'Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior will be eliminated eventually.'?
Mutualism can be represented as the interaction between ____________.
Select the CORRECT match:
| I | II | ||
| i. | Competition | a. | Lichen |
| ii. | Commensalism | b. | Sea anemone and clownfish |
| iii. | Mutualism | c. | Lions and Leopards |
Parasitism can be conectly represented as ____________.
Which one of the following is an example of predation?
Which one of the following is NOT an example of mutualism?
With the decline in the population of fig species it was noticed that the population of wasp species also started to decline. What is the relationship between the two and what could be the possible reason for decline of wasps?
Exarch xylem is found in:
______ in birds is an interesting example of parasitism in which the parasitic bird lays its eggs in the nest of its host and the host incubates them.
There are two optional ways of exploitation one way is parasitism. Which is the other one ______.
In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
Amensalism can be represented as ______
Lichens are association of ______.
Give one example for the following type.
Predator animal
Give one example for the following type.
Biological control agent
Give one example for the following type.
Phytophagous animal
Discuss the various types of positive interactions between species.
Pick out the appropriate association representing brood parasitism.
The interaction between cattle egret and the buffalo is ______.
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.
 |
 |
| A | B |
Write a note on parasitism.
Give one example of camouflage.
Explain one type of mutualism.
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:
