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Mesoderm is one of the three germ layers, groups of cells that interact early during the embryonic life of animals and from which organs and tissues…
MesodermGastrulationCell differentiationCellsTissuesEdmund Beecher Wilson contributed to cell biology, the study of cells, in the US during the end of the nineteenth and the beginning of the twentieth…
EmbryologyCellsCytologyHeredityEvolutionThe Cell-Theory was written by Thomas Henry Huxley in Britain and published in 1853 by The British and Foreign Medico-Chirurgical Review. The twenty-…
LiteratureEpigeneticsEmbryologyHuxley, Thomas Henry, 1825-1895Cellular control mechanismsEndoderm is one of the germ layers-- aggregates of cells that organize early during embryonic life and from which all organs and tissues develop.…
GastrulationEmbryosEmbryologyCellsTissuesThe Notch signaling pathway is a mechanism in animals by which adjacent cells communicate with each other, conveying spatial information and genetic…
EmbryologyDevelopmental BiologyEmbryosCell differentiationNotch genesCocaine use by pregnant women has a variety of effects on the embryo and fetus, ranging from various gastro-intestinal and cardiac defects to tissue…
CocaineCocaine abusePregnancyEmbryosFetusDinosaur egg parataxonomy is a classification system that organizes dinosaur eggs by descriptive features such as shape, size, and shell thickness.…
DinosaursDinosaurs--EggsPaleobiologyFossilsEmbryosIn Australia in the 1940s, Norman McAlister Gregg observed a connection between pregnant women who contracted the rubella virus, or German measles,…
LiteratureCataract in childrenRubellaRubella in pregnancyRubella virusIn eighteenth century Germany, Johann Friedrich Blumenbach studied how individuals within a species vary, and to explain such variations, he proposed…
AnthropologyAnatomy, ComparativeVariation (Biology)EmbryosDevelopmental BiologyJohann Friedrich Meckel studied abnormal animal and human anatomy in nineteenth century Germany in an attempt to explain embryological development.…
PeopleAnatomy, ComparativeEmbryologyBirth Defectsfetal development