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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
Give the role of VAM related to soil fertility.
Mention any two examples where the organisms involved are commercially exploited in agriculture.
Name the type of association: Crow feeding the hatchling of Koel
Define population.
With the help of a suitable diagram, describe the logistic population growth curve.
Define community.
Community is defined as ______.
Define Absolute Mortality.
Define the term population interactions. State its two types.
Explain any three important characteristics of population.
What is population interaction? Explain the interactions in Mutualism and Competition.
The interaction in nature, where one gets to benefit on the expense of other is _________.
Match the following and choose the correct combination from the options given below.
| Column I | Column II |
| Mutualism | Lion and deer |
| Commensalism | Round worm and man |
| Parasitism | Birds compete with squirrels for nuts |
| Competition | Sea anemone on hermit crab |
| Predation | Barnacles attached to Whales |
Differentiate between predator and prey.
Using '-' to depict inhibition and '+' to depict benefit, mutualism between two species can be represented as ____________.
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 ____________.
Brood parasitism is best explained by the example of ____________.
The interspecific interaction between Cuckoo and Crow is ______
Select the CORRECT match:
| I | II | ||
| i. | Competition | a. | Lichen |
| ii. | Commensalism | b. | Sea anemone and clownfish |
| iii. | Mutualism | c. | Lions and Leopards |
Which one of the following is NOT an example of commensalism?
Which one of the following pair does NOT show commensalism?
Rafflesia an arnoldii is an example of ______.
What is mycorrhiza?
Give one example for the following type.
Phytophagous animal
Give one example for the following type.
Chemical defense agent
Discuss the various types of positive interactions between species.
"Some species of insects and frogs have evolved with various specific features that help them from being detected."
- Justify the statement giving reasons.
- Mention any two such features.
What happens to an inferior competitor if a superior competitor is present in the same environment?
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:
Statement I - Calotropis growing in abandoned fields is never consumed by cattle and goats.
Statement II - Calotropis produces highly poisonous cardiac glycosides.
In light of above statements, select the most appropriate answer from the option given below.
Which of the following best describes intraspecific interaction?
Which interaction type is characterized by both species being benefited?
In predation, what is the relationship between the predator and prey?
What is the sign convention for the predation interaction?
In commensalism, how is the unaffected species impacted by the interaction?
What is the sign convention for amensalism?
