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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
Which day is observed as ‘World Environment Day’?
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
Write what do phytophagous insects feed on.
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?
Select the statement which explains best parasitism.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Name the type of association:
Clownfish and sea anemone
What is the ecological process behind the biological control method of managing pest insects?
Define the following term:
Camouflage
Distinguish between the following: Parasitism and Mutualism.
Define Absolute Mortality.
How absolute Natality differs from Realized Natality
What is commensalism? Explain it with a suitable example.
What is population interaction? Explain the interactions in Mutualism and Competition.
Tabulate and analysis of two species population interaction.
The correct description for the interspecific interaction shown in the given figure 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 ____________.
Match the Columns.
| Column A | Column B | ||
| i. | Lice on humans | a. | Endoparasites |
| ii. | Ectoparasites on marine fishes | b. | Grows on hedge plants |
| iii. | Cuscuta | c. | Ectoparasites |
| iv. | Plasmodium and humans | d. | Copepods |
Which of the following is NOT an example of mutualism?
______ in birds is an interesting example of parasitism in which the parasitic bird lays its eggs in the nest of its host and the host incubates them.
Which one of the following is one of the characteristics of a biological community?
There are two optional ways of exploitation one way is parasitism. Which is the other one ______.
Amensalism is an association between two species where ______.
Define ectoparasite and endoparasite and give suitable examples.
Give one example for the following type.
Phytophagous animal
Discuss the various types of positive interactions between species.
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 |
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 ______.
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 |
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
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 |
Mention the scientific name of protozoan parasite that causes Amoebiasis.
Describe mutualism.
Give one example of commensalism.
Which one of the following statement INCORRECT regarding competition?
What is the sign convention for competition between two species?
Tiger feeding on deer is an example of which population interaction?
