caenogenesis

• Terme biologique désignant l'apparition de nouveaux caractères ou structures au cours du développement embryonnaire, absents dans l'histoire évolutive antérieure de l'espèce, comme par exemple le développement du placenta chez les mammifères.

A biological term referring to the introduction of new characters or structures during embryonic development that were not present in the earlier evolutionary history of the species, such as the development of the placenta in mammals.

indénombrable

1. Embryonic adaptationC2formalscientific

   The introduction of new characters or structures during embryonic development that were not present in the earlier evolutionary history of the species, such as the development of the placenta in mammals.

   Cénogenèse

   • The evolution of the placenta is a classic example of caenogenesis in mammals.
   • Caenogenesis allows for adaptations that improve survival during early development.
   • Researchers study caenogenesis to understand how new traits emerge in embryos.

   Synonymescainogenesiscenogenesiskenogenesis