WebHistory of “Ontogeny Recapitulates Phylogeny” “Ontogeny recapitulates phylogeny” was a key scientific assumption of Freud’s time and a biological premise of Darwinian evolution. The principle means that as an 1 According to James Strachey’s note in his translation (1950), the essays were first published in the WebAbstract. In development, mammalian embryos successively develop notochord, somites, gill pouches and three sets of kidneys: pronephros, mesonephros and metanephros. …
Ontogeny and Phylogeny (1977), by Stephen Jay Gould
Webheld today, and the idea that ontogeny recapitulates phy-logeny in some form has its modern proponents (Lovejoy 2000). There are detractors as well (Richardson et al. 1997), and genetic findings have fueled the debate even as they have provided new data (Arthur 2002). Nevertheless, the current consensus seems to be that recapitulation is a gen- Web10 de fev. de 2024 · More than just a catchy phrase, “ontogeny recapitulates phylogeny” is the foundation of recapitulation theory. Recapitulation theory posits that the … break multiple loops python
RECAPITULATE English meaning - Cambridge Dictionary
Webeckel’s use of ‘‘ontogeny recapitulates phylogeny.’’ As Rich-ards’ emphasizes, Haeckel recognized various types of variation but not Lamarckian inheritance. Haeckel regarded heredity and adaptation as the ‘‘two mechanical causes of evolution’’ (Haeckel 1876, vol. 1, p. 1) and traced these Webopmental stages (ontogeny) will tend to recapitulate the order in which traits evolved (phylogeny). The develop-mental disruption force thus offers a plausible selection … WebThe evolutionary relationships among organisms; the patterns of lineage branching produced by the true evolutionary history of the organisms being considered. Many of the phylogenies you encounter are the "family trees" of groups of closely related species, but we can also use a phylogeny to depict the relationships between all life forms. For a more … break muscle too much excercise