Assertion: embryo's cell | /r/CapableOf | exist for few days
Facets:
Source sentences:
text: Cells of the ICM only exist for a few days in the natural course of embryo development; they arise during blastocyst formation from a morula on day 4 and persist throughout the first days or hours post-implantation before beginning the highly orchestrated process of differentiation.
text: Certain cells of the digestive tract live for only a few days, while some immune system cells can live for up to six weeks.