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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.
संबंधित प्रश्न
Explain mutualism with the help of any two examples.
Write what do phytophagous insects feed on.
Define the Stenothermal organisms.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Association between sea anemone and Hermit crab in gastropod shell is that of.
Give one example of interspecific competition.
In Logistic growth curve lag phase shows______.
How absolute Natality differs from Realized Natality
What is ESS?
Which principle/theory states that 'Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior will be eliminated eventually.'?
The correct description for the interspecific interaction shown in the given figure is ______
The interspecific interaction between Cuckoo and Crow is ______
Which population interaction can be represented by'+''-'?
Cattle egrets always foraging close to the grazing cattle is an example of ____________.
______ interaction is the biological interaction between organisms of same population.
Which of the following is NOT an example of mutualism?
Exarch xylem is found in:
What is mycorrhiza?
Give one example for the following type.
Chemical defense agent
Observe the set of 4 figures A, B, C and D and, answer the following questions
- Which one of the figures shows mutualism?
- What kind of association is shown in D?
- Name the organisms and the association in C.
- What role is the insect performing in B?
 Fig. (A) |
 Fig. (B) |
 Fig. (C) |
 Fig. (D) |
Discuss the various types of positive interactions between species.
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 |
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 |
Write a note on parasitism.
In which interaction of species, both the species are at a loss?
Describe mutualism.
Parasitism is an interaction between two organisms in which ______.
In predation, what is the relationship between the predator and prey?
In parasitism, which organism derives nourishment from the other?
Cattle egrets feeding on insects disturbed by grazing cattle is an example of which population interaction?
