Assertion: angiosperm's structure | /r/HasProperty | the xylem
Facets:
Source sentences:
text: On land, a rigid, self-supporting structure is necessary for plants; this structure, the xylem, consists of tiny rigid tubes through which water and dissolved mineral nutrients can move.
text: Vascular plants differ from other plants in that nutrients are transported between their different parts through specialized structures, called xylem and phloem.