water vascular system

1. System of fluid-filled tubes used by echinoderms in locomotion and feeding and respiration (synset 102154100)
   is a type of: vascular system - the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant
   is a part of: echinoderm - marine invertebrates with tube feet and five-part radially symmetrical bodies

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