What is lichen?? class - 7
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Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga. The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies. ... Many lichens will have both types of algae
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Lichens is a symbiotic relationship between different organisms - a fungus and an alga. They can grow on rocks, decaying wood logs, tree barks etc. Lichens are used to prepare natural indicator called litmus.
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