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प्रश्न
Lichens are association of ______.
विकल्प
bacteria and fungus
alga and bacterium
fungus and alga
fungus and virus
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उत्तर
Lichens are association of fungus and alga.
Explanation:
Lichens are an association of algae and fungi. This symbiotic relationship is mutualistic, where the algal component synthesizes organic food, which is utilized by both partners, while the fungal component offers water, minerals, and protection from desiccation and temperature extremes to the alga.
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संबंधित प्रश्न
How is mutualism different from commensalism?
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.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Name important defense mechanisms in plants against herbivores.
Competition between species leads to ________.
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 |
Differentiate between predator and prey.
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Parasitism can be conectly represented as ____________.
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The presence or interference of one species leads to reduction in feeding efficiency of other species is termed as
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Predator animal
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Phytophagous animal
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Chemical defense agent
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- Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
- Identify the infective stage labelled ‘D’.
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Statement II: In general, carnivores are more adversely affected by competition than herbivores.
In the light of the above statements, choose the correct answer from the options given below:
