Filter my results
The process of gastrulation allows for the formation of the germ layers in metazoan embryos, and is generally achieved through a series of complex…
Haeckel, Ernst, 1834-1919GastrulationAmphibiansFrogsThe Spemann-Mangold organizer, also known as the Spemann organizer, is a cluster of cells in the developing embryo of an amphibian that induces…
EmbryosAmphibiansSpemann, Hans, 1869-1941EmbryologyGastrulationHilde Mangold, previously Hilde Proescholdt, was a German embryologist and physiologist who became well known for research completed with Hans…
Organizers, EmbryonicBiographydifferentiationAmphibiansJohn Spangler Nicholas, an American biologist, was born on 10 March 1895 in Allegheny, Pennsylvania. He was the only child of Elizabeth Ellen…
PeopleBiographyMammalsAmphibians