Assertion: angiosperm's structure | /r/HasProperty | female gametophyte
Facets:
Source sentences:
text: What makes them the first true seed plants is that they developed structures called cupules to enclose and protect the ovule—the female gametophyte and associated tissues—which develops into a seed upon fertilization.
text: What makes them the first true seed plants is that they developed structures called cupules to enclose and protect the ovule—the female gametophyte and associated tissues—which develops into a seed upon fertilization.