Rhizoid is non-cellular thread like extension of some plants and they have been evolved during evolution of plants to land habitat for absorption and conservation of water.This is characteristic feature of Broyophytes but they are also present in some other plants.
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... a proper definition. You should make a good definition by looking the etimology of the term. - If a plant does not have true root (radix) and just rhizoid, it is called as thallus - If a plant does have true root, it is called as cormus. @ MOD: Would someone please change the title thus match to ...
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