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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
Write what do phytophagous insects feed on.
Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.
Name important defence mechanisms in plants against herbivory.
Define the following term:
Commensalism
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Answer the following question.
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Mention the term used to describe a population interaction between an orchid growing on a forest tree.
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Which one of the following is NOT an example of mutualism?
A protozoan living in the digestive tract of a flea that lives on a dog is an example of ______
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?
Which of the following is not an example of commensalism?
The presence or interference of one species leads to reduction in feeding efficiency of other species is termed as
Amensalism is an association between two species where ______.
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| Plant Name | Type | |
| a. | Hydrilla | ______ |
| b. | Typha | ______ |
| c. | Nymphaea | ______ |
| d. | Lemna | ______ |
| e. | Vallisneria | ______ |
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Write the observations made at the end of Connell's field, experiment on barnacles on the rocky sea coasts of Scotland.
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 ______.
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"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 |
Select the statement which best describes parasitism.
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