Where do all adult echinoderms live?\nOptions:\n- (A) soil\n- (B) desert\n- (C) freshwater\n- (D) fossils\n- (E) water\n- (F) Earth\n- (G) small\n- (H) aquariums Let's be accurate as possible.
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Adult echinoderms have radial symmetry. All animals with radial symmetry live in water. All adult echinoderms live in water.
The final answer: (E).
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