develops_from existence starts and ends during gastrula stage blastula multicellular organism embryo gastrula BILA:0000060 BTO:0001403 FBbt:00005317 FMA:293108 GAID:1302 MESH:A16.254.412 MIAA:0000179 Organism at the gastrula stage. UBERON:0004734 UBERON:0007012 UMLS:C0017199 UMLS:C1284022 We explicitly merge the NCITA terms here blastocystis trilaminaris gastrula embryo tri-laminar disc tri-laminar disk trilaminar blastocyst trilaminar blastoderm trilaminar disc trilaminar disk trilaminar germ uberon