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प्रश्न
Distinguish between the following: Parasitism and Mutualism.
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उत्तर
| Parasitism | Mutualism | |
| i. |
In parasitism, only one species (parasite) is benefited and the interaction is detrimental to other species (host). |
In mutualism, both species are benefited. |
| ii. | The parasite needs a host, but the host does not need the parasite. | Both species need the presence of each other. |
| E.g. | Cuscuta, a parasitic plant commonly found growing on hedge plants. | Lichen represents the mutualistic relationship between a fungus and photosynthetic algae or cyanobacteria. |
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संबंधित प्रश्न
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?
Competition and Mutualism.
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 |
Identify the correct pair that exhibits commensalism.
Give one example for the following type.
Predator animal
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
The interaction between cattle egret and the buffalo is ______.
The diagram given below shows the life cycle of a malarial parasite. Study it carefully and answer the questions that follows:
- Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
- Identify the infective stage labelled ‘D’.
- Name the structure labelled ‘A’ and ‘E’.
- Give any one symptom of malaria.
Some orchids live on the branches of mango trees. Name the type of interaction that exists between the mango tree and the orchid.
Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the correct answer from the options given below:
