Answer:
Generalised features of Annelida are These are
triploblastic, animals have bilaterally symmetrical, elongated, vermiform,
cylindrical or dorsoventrally flattened body
(ii) Some are free-living in soil or water and some are parasitic
in nature can have varied habitats of fresh or marine water.
(iii) Digestive system of these animals is well-developed.
(iv) Their alimentary canal is tube-like, complete and extends
straight from mouth to anus.
(v) In these animals, there is extensive organ differentiation.
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