NEET Biology question
Read the given statements about lichens and select the incorrect ones. (i) They represent an example of commensalism. (ii) Algal partner obtains water and mineral salts from the fungus and the fungal partner obtains food prepared by the alga. (iii) These do not grow in polluted areas. (iv) The mycobiont is usually an Ascomycetes or a Basidiomycetes. (v) The phycobiont is mostly a green alga or cyanobacterium. (vi) These constitute the pioneer community in case of hydrosere.
Solution
Statement (i) is incorrect: lichens represent a controlled, mutualistic (near-parasitic) symbiosis, not simple commensalism. Statement (vi) is incorrect: lichens are classic pioneers of xerosere (bare rock) succession, not hydrosere
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