Question

Describe the structure of blastula?​

Answer 1

Answer:

The blastula is usually a spherical layer of cells (the blastoderm) surrounding a fluid-filled or yolk-filled cavity (the blastocoel). Mammals at this stage form a structure called the blastocyst, characterized by an inner cell mass that is distinct from the surrounding blastula.

Answer 2

Explanation:

1. blastulation is the process of fromation of hollow and multicellular blastocyst.
2. the outer layer of cells seen in the morula now form the layer called trophoblast.
3. the inner larger cell mass or embryoblasts.
4. the trophoblast cells in contact cells in contact with the embryonal knob are called cells of rauber