Arthropods are characterized by the possession of a segmented body
with appendages on at least one segment.
Arthropods are animals belonging to the Phylum Arthropoda (from Greek
бј€žÐŸÐƒÐžÑ‘ПЃОїОЅ arthron, "joint", and ПЂОїОґПЊП€š podos, "foot") and
include the insects, arachnids, crustaceans and allies.
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They have a dorsal heart and a ventral nervous system. All arthropods
are covered by a hard exoskeleton made of chitin, a polysaccharide,
which provides physical protection and resistance to desiccation.
Arthropods grow by shedding this covering in what are ter