Once the Embryonic Mass Has 12 or More Cells, It

Question

Once the embryonic mass has 12 or more cells, it is called a ________.
A) morula
B) gastrula
C) blastula
D) blastocyst
E) trophoblast

Accepted Answer

The embryonic mass with 12 or more cells is called a morula, which is an early stage in embryonic development.