describe the role of Alga and fungus in lichens ? what kind of relationship they saw.
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Lichens are the symbiotic association between algae and fungi. The algal cells, through the process of photosynthesis, provide the fungus with some of the organic nutrients which it needs. The fungus also plays a vital role in providing a physical structure to shelter the algae from excess sunlight and in particular, water loss.
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In lichens, algae is an autotroph while fungus is an saprophyte. Water and minerals are supplied by the fungus to algae and using them algae makes food with the process of photosynthesis and supplies food to fungus. Hence, both "mutually benefit" each other.
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