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प्रश्न
What is commensalism?
What is ‘commensalism’?
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उत्तर
Commensalism is the interaction in which one species benefits and the other is neither harmed nor benefited.
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संबंधित प्रश्न
Apart from being a part of the food chain, predators play other important roles. Mention any two such roles supported by examples.
An orchid plant is growing on the branch of a mango tree. How do you describe this interaction between the orchid and the mango tree?
Mention any two examples where the organisms involved are commercially exploited in agriculture.
How is mutualism different from commensalism?
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
What is the ecological process behind the biological control method of managing pest insects?
Define the term population interactions. State its two types.
Tabulate and analysis of two species population interaction.
Mutualism can be represented as the interaction between ____________.
Identify the correct pair that exhibits commensalism.
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
Identify the interspecific interaction which one species is benefited and other is neither banned nor benefited.
Parasitism can be conectly represented as ____________.
Which one of the following pair does NOT show commensalism?
The presence or interference of one species leads to reduction in feeding efficiency of other species is termed as
Amensalism can be represented as ______
Amensalism is an association between two species where ______.
Give one example for the following type.
Camouflaged animal
Give one example for the following type.
Predator animal
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
Pick out the appropriate association representing brood parasitism.
Name any two categories of organisms that in general are adversely affected by competition.
The value of 'Z' (regression coefficient) lies in the range of ______ regardless of the taxonomic group or the region.
Complete the following chart regarding population interaction and re-write:
| Sr. No. | Name of interaction | Interaction between |
| 1. | ? | Plasmodium and Man |
| 2. | ? | Leopard and Lion |
| 3. | ? | Clownfish and Sea-anemone |
Interspecific interaction could be ______.
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 |
In which interaction of species, both the species are at a loss?
Explain one type of mutualism.
Parasitism is an interaction between two organisms in which ______.
