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प्रश्न
Define mutualism.
Define the following term:
Mutualism
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उत्तर १
The type of interaction in which both species are benefitted is called mutualism.
उत्तर २
Mutualism refers to an interaction between two different species in which both benefit. (The term symbiosis is frequently used interchangeably with mutualism.)
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संबंधित प्रश्न
Write what do phytophagous insects feed on.
Why do clown fish and sea anemone pair up? What is this relationship called?
State Gause’s Competitive Exclusion Principle.
Name important defence mechanisms in plants against herbivory.
Define the following term:
Interspecific competition
Name the type of association:
Clownfish and sea anemone
Name the type of association: Crow feeding the hatchling of Koel
Define the following term:
Camouflage
With the help of a suitable diagram, describe the logistic population growth curve.
Enlist and explain the important characteristics of a population.
What is ESS?
What is Mortality? What are its two types?
Define Niche.
What is Commensalism? Explain it with a suitable example.
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.
The correct description for the interspecific interaction shown in the given figure is ______
The interspecific interaction between Cuckoo and Crow is ______
Identify the interspecific interaction which one species is benefited and other is neither banned nor benefited.
Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
Which population interaction can be represented by'+''-'?
Define stenohaline species.
What are the organisms that feed on plant sap and other plant parts called?
Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct relation with those trees. Discuss the type of association the lianas have with the trees.
Give one example for the following type.
Chemical defense agent
Discuss the various types of positive interactions between species.
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
Give one example for the following:
An organism which can conform
Name any two categories of organisms that in general are adversely affected by competition.
Carnivorous animals-lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards take smaller ones. This mechanism of competition is referred to as ______.
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
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.
Mention the scientific name of protozoan parasite that causes Amoebiasis.
