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CNIDARIA, IMG-20210907-WA0003, IMG-20210907-WA0007, IMG-20210907-WA0009 -…
CNIDARIA
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Mostly marine ,few are fresh water.
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Presence of specialized cells called cnidocytes which contain stinging structures nematocysts which produce thread or barb that help in defence mechanism and catching of prey.
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Cnidarians which exists in two types of body form i.e polyp and medusa show metagenisis i.e alternation of generation.
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