It might help them survive because the segments allow flexiblity and mobility to get away from predators or chase prey. And the segments also mean that the strength of the exoskeleton is not comprimised
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Yes, segmented bodies, an exoskeleton made from chitin, and joint appendages are common features of arthropods.
Arthropods are characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages.
A hard outer body covering called an exoskeleton.Specialized mouth partsJointed legsCompound EyesSegmented body
Crayfish are classified as arthropods, because of their characteristic segmented bodies, chitinous exoskeleton, and joint appendages.
Invertebrateexoskeletonsegmented body