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प्रश्न
Give one example of commensalism.
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उत्तर
The pilot fish (Naucrates) always accompanies sharks without becoming attached to their bodies. When a shark eats its prey, it feeds on falling food particles.
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संबंधित प्रश्न
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
Define the following term:
Commensalism
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 the ecological process behind the biological control method of managing pest insects?
Give one example of mutualism.
In Logistic growth curve lag phase shows______.
What is Mortality? What are its two types?
Define the term population interactions. State its two types.
Explain any three important characteristics of population.
Explain different population interactions with examples.
What is population interaction? Explain the interactions in Mutualism and Competition.
Predation and parasitism are which type of interactions?
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 |
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
The interspecific interaction between Cuckoo and Crow is ______
Identify the interspecific interaction which one species is benefited and other is neither banned nor benefited.
In the given picture, identify the type of interspecific interaction.
Mycorrhizae are the example of ______.
The presence or interference of one species leads to reduction in feeding efficiency of other species is termed as
Define stenohaline species.
The interaction between cattle egret and the buffalo is ______.
The value of 'Z' (regression coefficient) lies in the range of ______ regardless of the taxonomic group or the region.
Between which among the following, the relationship is not an example of
?
"Cattle and goats do not browse the Calotropis plant." Justify the statement giving reasons.
Observe the graph given below.
|
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.
|
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 |
What happens to an inferior competitor if a superior competitor is present in the same environment?
