Organisms that live in a marine environment,have skin gills,tube feet,a coelom,and a water vascular system are classified as a(n)

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Organisms with skin gills, tube feet, a coelom, and a water vascular system are characteristic of echinoderms, which include species such as starfish, sea urchins, and sea cucumbers. Tunicates and lancelets are chordates and lack these specific characteristics, while planarians and oligochaetes are not marine organisms.

Organisms That Live in a Marine Environment,have Skin Gills,tube Feet,a