What is the duration of ontogenesis of a living organism?

Ontogenesis is the development of a separate living organism or a system within this organism from a fertilized egg to maturation and death. Ontogenesis is all developmental events that occur during the existence of a living organism. Ontogenesis begins with changes in the egg during fertilization and includes developmental events during birth or hatching and subsequent growth, body reshaping, and the development of secondary sexual characteristics.



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.