Which of the Following is the Structure That is a Solid

Question

Which of the following is the structure that is a solid ball of 12 or more cells?
A) Blastocyst
B) Morula
C) Gastrocyst
D) Zygote

Accepted Answer

The morula is a solid ball of cells that forms after the zygote undergoes several rounds of cell division, typically consisting of 12 to 32 cells.