Ontogeny is the origination and development of an organism, usually from the time of fertilization of the egg to adult. The term can also be used to refer to the study of the entirety of an organism's lifespan.

What is meant by ontogenetic?

1 : of, relating to, or appearing in the course of ontogeny. 2 : based on visible morphological characters.

What is an example of ontogenetic?

Examples of ontogenetic adaptations are provided from the prenatal (e.g., placenta in mammals), infancy (e.g., nursing and rooting reflex; neonatal imitation), and childhood (e.g., overestimation of one's abilities, egocentricity) periods.