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प्रश्न
Define community.
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उत्तर १
A community is an assemblage of populations of different species living in the same area and interacting with one another.
उत्तर २
A community is an association of a number of different interrelated populations belonging to different species in a common environment. A community is characterised by species diversity, coexistence and interdependence.
संबंधित प्रश्न
Which day is observed as ‘World Environment Day’?
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
Name important defence mechanisms in plants against herbivory.
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Name the two intermediate hosts which the human liver fluke depends on to complete its life cycle so as to facilitate parasitization of its primary host.
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.
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| 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 |
Tabulate and analysis of two species population interaction.
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Brood parasitism is best explained by the example of ____________.
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Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
In the given picture, identify the type of interspecific interaction.
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 |
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Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct relation with those trees. Discuss the type of association the lianas have with the trees.
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.
Give one example for the following:
A parasitic angiosperm
Pick out the appropriate association representing brood parasitism.
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A Tight one-to-one relationship between many species of fig tree and certain wasps is an example of ______.
Interaction between clown fish living among the stinging tentacles of sea anemone is an example of ______.
Write a note on parasitism.
What are the special adaptations that endoparasites show?
Select the statement which best describes parasitism.
Give one example of commensalism.
Give one example of camouflage.
Association between clown fish and sea anemone is ______.
