1) Self-reproduction is aimed at maintaining the life of the species by increasing the number of individuals. Self-reproduction is associated with the transmission of hereditary traits and properties from generation to generation.
2) Development involves the gradual manifestation of all the properties of an organism in the process of its formation.
3) Development can be individual and historical. In the process of historical development, species and larger systematic groups are formed.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.