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Write a short note on Lichens ___! |
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Answer» :Symbiotic associations between algal ( phycobiont ) fungal COMPONENT ( mycobiont ).The phycobionts are autotrophic and mycobionts are heterotrophic.Algae prepare food for fungi.Fungi provide SHELTER and absorb NUTRIENTS for alga.They are very good pollution indicators.They don't grow in polluted areas.They are non-vascular plants ie. they have no roots, STEMS, or leaves.Their PRESENCE indicates that there's absence of pollution in that area, and their absence indicates that the area is polluted. |
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