Blastosphere and Developing infant

Blastosphere noun - Early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs.

Developing infant and blastosphere are semantically related in unborn young topic. In some cases you can use "Developing infant" instead a noun "Blastosphere".

Blastosphere and developing infant are semantically related in unborn young topic. You can use "Blastosphere" instead a noun phrase "Developing infant".