Assertion: carpel's ovule | /r/MadeOf | megasporangium
Facets:
Source sentences:
text: An ovule consists of: MEGASPORANGIUM (surrounded by one or two layers of tissue called INTEGUMENTS) produces spores that develop into MEGAGAMETOPHYTES (remain within the tissues of the ovule and produce one or more egg cells).
text: An ovule of a seed plant consists of the megasporangium, megaspores, and integuments.