Assertion: echinoderm's tube foot | /r/HasProperty | extensions of the body wall
Facets:
Source sentences:
text: Called the water-vascular, or ambulacral, system, it connects with the tube feet, or podia, which are extensions of the body wall that generally protrude through holes in the skeleton.
text: Called the water-vascular, or ambulacral, system, it connects with the tube feet, or podia, which are extensions of the body wall that generally protrude through holes in the skeleton.