existence starts with existence ends with embryo stage multicellular organism embryo AAO:0011035 AEO:0000169 Anatomical entity that comprises the organism in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems. For example, for mammals, the process would begin with zygote formation and end with birth. For insects, the process would begin at zygote formation and end with larval hatching. For plant zygotic embryos, this would be from zygote formation to the end of seed dormancy. For plant vegetative embryos, this would be from the initial determination of the cell or group of cells to form an embryo until the point when the embryo becomes independent of the parent plant. BILA:0000056 BSA:0000039 BTO:0000379 CALOHA:TS-0229 EFO:0001367 EHDAA2:0000002 EHDAA2_RETIRED:0003236 EHDAA:38 EMAPA:16039 FBbt:00000052 FMA:69068 GAID:963 MAT:0000226 MESH:D004622 MIAA:0000019 OGEM:000001 Obsoleted in ZFA. Note that embryo is not classified as an embryonic structure - an embryonic structure is only the parts of an embryo OpenCyc:Mx4rwP1ceZwpEbGdrcN5Y29ycA UBERON:0000922 UMLS:C0013935 VHOG:0001766 XAO:0000113 ZFA:0000103 developing organism developmental tissue embryonic embryonic organism uberon