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प्रश्न
What is Commensalism? Explain it with a suitable example.
Explain commensalism, with the help of an example.
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उत्तर
- Commensalism is the interaction between two species in which one species derives benefit and the other one is neither harmed nor benefited.
- This is the interaction in which one species benefits and the other is neither harmed nor benefited.
- An orchid growing as an epiphyte on a branch of a mango tree will benefit, while the mango tree derives no benefit.
- The cattle egret and grazing cattle in close association are a classic example of commensalism. Cattle egrets always forage close to cattle; as cattle move, they flush out insects that might be difficult for the egrets to find and catch.
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संबंधित प्रश्न
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
What is mutualism?
Apart from being a part of the food chain, predators play other important roles. Mention any two such roles supported by examples.
Explain mutualism with the help of any two examples.
Why do clown fish and sea anemone pair up? What is this relationship called?
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.
Give one example of Mutualism.
Name important defense mechanisms in plants against herbivores.
Define Population.
In Logistic growth curve lag phase shows______.
What is Mortality? What are its two types?
What is population interaction? Explain the interactions in Mutualism and Competition.
Competition between species leads to ________.
Define the following term:
Parasitism
Differentiate between predator and prey.
Two species competing for the same resources, avoid competition by choosing different times for feeding, also known as ______
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 correct description for the interspecific interaction shown in the given figure is ______
Cattle egrets always foraging close to the grazing cattle is an example of ____________.
Lichens showing relationship between alga and fungus is an example of ____________ type of interaction.
Which one of the following pair does NOT show commensalism?
With the decline in the population of fig species it was noticed that the population of wasp species also started to decline. What is the relationship between the two and what could be the possible reason for decline of wasps?
Rafflesia an arnoldii is an example of ______.
Lichens are association of ______.
Which of the following is a partial root parasite?
What is the interaction between two species called?
Define ectoparasite and endoparasite and give suitable examples.
Give one example for the following type.
Camouflaged animal
Give one example for the following type.
Phytophagous animal
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.
While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.
The value of 'Z' (regression coefficient) lies in the range of ______ regardless of the taxonomic group or the region.
Match the Column I with Column II.
| Column I | Column II |
| A. Lichen | (i) Commensalism |
| B. Shark and Pilot fish | (ii) Mutualism |
| C. Barnacles on the back of a whale | (iii) Symbiotic obligatory relationship |
| D. Sharks and dolphins | (iv) Competition |
Write a note on parasitism.
Mention the scientific name of protozoan parasite that causes Amoebiasis.
Describe mutualism.
What happens to an inferior competitor if a superior competitor is present in the same environment?
What happens to an inferior competitor if the superior competitor is removed from the environment?
