recapitulation theory
51Étienne Serres — Étienne Renaud Augustin Serres (1786 1868) was a French physician and embryologist. In 1810 he received his medical doctorate in Paris, and afterwards worked at the Hôtel Dieu de Paris and the Hôpital de la Pitié. Beginning in 1839 he taught… …
52Outline of children — Biologically, a child (plural: children) is generally a human between the stages of birth and puberty. Some definitions include the unborn (termed fetus).[1] The legal definition of child generally refers to a minor, otherwise known as a person… …
53Ontogeny — The initial stages of human embryogenesis Ontogeny (also ontogenesis or morphogenesis) is the origin and the development of an organism – for example: from the fertilized egg to mature form. It covers in essence, the study of an organism s… …
54Nikolaas Tinbergen — Niko Tinbergen Nikolaas Niko Tinbergen (left) and Konrad Lorenz (right) Born …
55Biogenesis — This article is about generation of life from existing life. For the biogenetic law of Ernst Haeckel, see recapitulation theory. For the chemical origin of life, see abiogenesis. Biogenesis is the law that living things come only from other… …
56Energy (esotericism) — This article is about spiritual energy. For other uses, see Energy (disambiguation). Subtle energy redirects here. For the mystical concept of psychospiritual bodies overlaying the physical body, see Subtle body. Spiritual practices and ideas… …
57Hiccup — For the Canadian comedy, see Hiccups (TV series). Singultus ICD 10 R06.6 ICD 9 786.8 DiseasesDB …
58biogeneticlaw — biogenetic law n. The theory that the stages in an organism s embryonic development and differentiation correspond to the stages of evolutionary development characteristic of the species. Also called Haeckel s law, recapitulation theory. * * * …
59biogenetic law — ▪ biology also called Recapitulation Theory, postulation, by Ernst Haeckel (Haeckel, Ernst) in 1866, that ontogeny recapitulates phylogeny i.e., the development of the animal embryo and young traces the evolutionary development of the… …
60Haeckel's law — Haeck·el s law (hekґəlz) [Ernst Heinrich Philipp August Haeckel, German naturalist, 1834–1919] see recapitulation theory, under theory …
