Question

what are lichens not define it ​

Answer 1

Lichens comprise a fungus living in a symbiotic relationship with an alga or cyanobacterium (or both in some instances).

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Answer 2

Lichen, Fungus

A lichen, or lichenized fungus, is actually two organisms functioning as a single, stable unit. Lichens comprise a fungus living in a symbiotic relationship with an alga or cyanobacterium (or both in some instances).

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