Write the general characters of the phylum Annelida. - Vidyadip

Question

Write the general characters of the phylum Annelida.

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Answer

They are aquatic or terrestrials, free-living or parasitic.
They are triploblastic, bilaterally symmetrical, schizocoelomates with organ system level of organisation.
The body is metamerically segmented.
Longitudinal and circular muscles help in locomotion.
A closed type of circulation is seen.
Respiratory pigments are present.
Sexual reproduction is seen. Development is direct or indirect with a trochophore larva e.g., the earthworm.

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