The role of changes in cell contact behavior in amphibian gastrulation.
D000663:Amphibians / Q000196:embryology*; D000818:Animals; D002448:Cell Adhesion; D002465:Cell Movement; D004475:Ectoderm / Q000166:cytology; D004625:Embryo, Nonmammalian; D006824:Hybridization, Genetic; D008648:Mesoderm / Q000166:cytology; D008854:Microscopy, Electron; D009024:Morphogenesis; D013499:Surface Properties