How do annelid animals differ from arthropods?

Differences between annelid animals and arthropods are as follows:

Annelids Arthropods
Metameric segmentation is observed where the body is segmented from head to tail Incomplete metameric segmentation. The body is not completely segmented
They are referred to as segmented worms They are termed as animals with jointed legs
The coelom is the true body cavity they possess Presence of a body cavity containing blood known as ‘haemocoel’
Breathing takes place through the skin Breathing takes place through the trachea, gill, book lungs etc
Most of the annelids are hermaphrodites They have separate sexes
Example – Nereis, Earthworm Example – Housefly, crab

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