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प्रश्न
What is population interaction? Explain the interactions in Mutualism and Competition.
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उत्तर
Definition: The interaction between nature, animals, plants and microbes to form a biological community is known as population interaction. These interactions can be intraspecific i.e. existing between organisms of same population, and interspecific i.e. between members of different species.
i. Mutualism: The type of interaction in which both the species are benefitted is called as mutualism.
- This interaction is obligatory and interdependent.
- In this type of interaction, both species - alga and lichen are benefited.
- Lichens represent an intimate, mutualistic relationship between a fungus and photosynthetic algae or cyanobacteria.
ii. Competition: Competition is the type of interaction where both the species are harmed.
- Totally unrelated species may compete for the same resource e.g. in shallow creeks on the west coast of Mumbai, visiting flamingos and resident fish compete for their common food, the zooplankton.
- However, resources need not always be limiting for competition to occur. In competition, the feeding efficiency of one species is reduced due to the interference or inhibitory presence of the other species, even if resources (food and space) are abundant, e.g. Leopards do not hunt in close proximity of lion pride.
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संबंधित प्रश्न
State Gause’s competitive exclusion principle.
Define the following term:
Interspecific competition
Select the statement which explains best parasitism.
Association between sea anemone and Hermit crab in gastropod shell is that of.
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 |
Parasitism can be conectly represented as ____________.
Which of the following is NOT an example of mutualism?
Mycorrhizae are the example of ______.
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.
What is the sign convention for amensalism?
