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प्रश्न
Lichens are association of ______.
पर्याय
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
What is mutualism?
Explain mutualism with the help of any two examples.
Why do clown fish and sea anemone pair up? What is this relationship called?
Name important defence mechanisms in plants against herbivory.
Define the following term:
Interspecific competition
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Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Name and explain the interaction that is seen between clownfish and sea anemones.
Give one example of interspecific competition.
What is population ecology?
Define population growth. Explain different types of age pyramids.
Competition between species leads to ________.
Tabulate and analysis of two species population interaction.
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.'?
Select the CORRECT match:
| I | II | ||
| i. | Competition | a. | Lichen |
| ii. | Commensalism | b. | Sea anemone and clownfish |
| iii. | Mutualism | c. | Lions and Leopards |
Cattle egrets always foraging close to the grazing cattle is an example of ____________.
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Define ectoparasite and endoparasite and give suitable examples.
What is brood parasitism? Explain with the help of an example.
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
Give one example for the following:
An organism which can conform
Between which among the following, the relationship is not an example of
?
Interaction between clown fish living among the stinging tentacles of sea anemone is an example of ______.
Select the statement which best describes parasitism.
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.
Statement I - Calotropis growing in abandoned fields is never consumed by cattle and goats.
Statement II - Calotropis produces highly poisonous cardiac glycosides.
In light of above statements, select the most appropriate answer from the option given below.
