Question

differentiate between annelida and arthropoda

Answer 1

Annelida	Arthropoda
They do not have any distinct head.	Their body is differentiated into head, thorax and abdomen.
Exoskeleton is absent.	Body is covered by chitinous exoskeleton.
Locomotion is done by setae, parapodia or suckers.	Three pairs of jointed appendages are present for locomotion.
Respiration occurs through skin.	Respiration occurs through trachea or book lungs.
E.g. Earthworm, Leech	E.g. Cockroach, Spider