What is ontogeny. What are the periods of ontogenesis? Give a brief description of postembryonic development.

Ontogenesis is the personal development of an organism from fertilization to death.
Periods:
1) pro-embryonic
2) embryonic
3) postembryonic
Postembryonic period – the period of development of an organism beginning from hatching or childbirth.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.