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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
Which day is observed as ‘World Environment Day’?
Give the role of VAM related to soil fertility.
Name important defence mechanisms in plants against herbivory.
Define the following term:
Interspecific competition
Name the two intermediate hosts which the human liver fluke depends on to complete its life cycle so as to facilitate parasitization of its primary host.
What is population ecology?
What is ESS?
Define the term population interactions. State its two types.
Define population growth. Explain different types of age pyramids.
The interaction in nature, where one gets to benefit on the expense of other is _________.
Define the following term:
Parasitism
Statement I: If one or two species are lost, it may not affect proper functioning of ecosystem.
Statement II: Loss of key species causes serious threat to functioning of ecosystem. Choose the correct alternative with reference to the above statements
Brood parasitism is best explained by the example of ____________.
Select the CORRECT match:
| I | II | ||
| i. | Competition | a. | Lichen |
| ii. | Commensalism | b. | Sea anemone and clownfish |
| iii. | Mutualism | c. | Lions and Leopards |
In the given picture, identify the type of interspecific interaction.
Parasitism can be conectly represented as ____________.
Which one of the following is NOT an example of mutualism?
A protozoan living in the digestive tract of a flea that lives on a dog is an example of ______
Mycorrhizae are the example of ______.
Rafflesia an arnoldii is an example of ______.
______ 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.
Which of the following is not an example of commensalism?
An interaction favourable to both population but no obligatory to either is ______.
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?
A population has more young individuals compared to the older individuals. What would be the status of the population after some years?
Define stenohaline species.
What is mycorrhiza?
Give one example for the following type.
Chemical defense agent
Observe the set of 4 figures A, B, C and D and, answer the following questions
- Which one of the figures shows mutualism?
- What kind of association is shown in D?
- Name the organisms and the association in C.
- What role is the insect performing in B?
 Fig. (A) |
 Fig. (B) |
 Fig. (C) |
 Fig. (D) |
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.
Give one example for the following:
A parasitic angiosperm
Select the statement which best describes parasitism.
Give one example of commensalism.
Parasitism is an interaction between two organisms in which ______.
Statement I: Gause’s ‘Competitive Exclusion Principle states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated eventually.
Statement II: In general, carnivores are more adversely affected by competition than herbivores.
In the light of the above statements, choose the correct answer from the options given below:
