title: PREGASTRULAR MECHANISMS IN THE MORPHOGENESIS OF THE SALAMANDER AMBYSTOMA MACULATUM.
mesh_terms: D000557:Ambystoma; D000818:Animals; D003593:Cytoplasm; D004626:Embryology; D041981:Gastrointestinal Tract; D009024:Morphogenesis; D010063:Ovum; D012106:Research; D014562:Caudata
keywords: CYTOPLASM; EMBRYOLOGY; EXPERIMENTAL LAB STUDY; GASTROINTESTINAL SYSTEM; OVUM; SALAMANDERS