A blastocyst is a single-layer hollow ball of about 5 million cells encircling a fluid-filled cavity,with a dense mass of cells known as the central cell mass grouped together at one side.

Question

A blastocyst is a single-layer hollow ball of about 5 million cells encircling a fluid-filled cavity,with a dense mass of cells known as the central cell mass grouped together at one side.​

Quizplus · Accepted Answer

A blastocyst is a structure formed in the early development of mammals, consisting of approximately 70-100 cells. It is a hollow ball with an outer layer called the trophoblast, surrounding a fluid-filled cavity and an inner cell mass (not central cell mass) located at one side, not 5 million cells.

A Blastocyst Is a Single-Layer Hollow Ball of About 5