Embryogenesis is the early stage of biological development, referring to the process from the fertilization of the egg to the formation of the individual.

The process of embryogenesis is very complex, with continuous cell division and differentiation.

This project is still in the early stages.

The ovum is the beginning of life.

He pointed at the location on the map.

That individual is particularly strong among the species.

A fertilized egg is the result of an egg and sperm combining.

The process of this project was very complicated.

There were many difficulties in the initial period of this project.

This area has been rapidly developing in recent years.