Assertion: starfish's vascular system | /r/HasProperty | hydraulic water
Facets:
Source sentences:
text: Starfish do not rely on a jointed, movable skeleton for support and movement (although starfish are still protected by their skeleton), but instead possess a hydraulic water vascular system that aids the starfish in movement.
text: Sea stars do not have movable skeletons, but instead possess a hydraulic water vascular system.
text: Sea stars do not have movable skeletons, but instead possess a hydraulic water vascular system.