Assertion: embryo's structure | /r/Synonym | the blastocyst
Facets:
Source sentences:
text: Mammals at this stage form a structure called the blastocyst, characterized by an inner cell mass that is distinct from the surrounding blastula, shown in Figure 1b.
text: Mammals at this stage form a structure called the blastocyst, characterized by an inner cell mass that is distinct from the surrounding blastula.