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Phylum - Annelida (Segmented worms)...

Phylum - Annelida (Segmented worms)

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(i) The body of these animals is long, cylindrical and metamerically segmented.
(ii) Most of the animals are free-living, but few are ectoparasites. Free living animals may be marine or fresh water dwellers or terrestrial.
(iii) They are triploblastic, bilaterally symmetrical and eucoelomate.
(iv) These animals, are either hermaphrodite or unisexual.
(v)They have setae, parapodia or suckers for locomotion.
(vi) The body is covered with special cuticle. e.g. Earthworm, Leech, Nereis etc.
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