Assertion: echinoderm's vascular system | /r/CapableOf | function in the movement of tube feet
Facets:
Source sentences:
text: The water-vascular system, which functions in the movement of tube feet, is a characteristic feature of echinoderms, and evidence of its existence has been found in even the oldest fossil forms.
text: The water-vascular system, which functions in the movement of tube feet, is a characteristic feature of echinoderms, and evidence of its existence has been found in even the oldest fossil forms.