has_part has part has part starts with starts with ends with ends with occurrent processual entity death stage life cycle https://github.com/obophenotype/uberon/issues/532 ncithesaurus:Life uberon MmusDv:0000001 life FBdv:00000000 An entire span of an organism's life, commencing with the zygote stage and ending in the death of the organism. lifespan entire life cycle OGES:000011 UBERON:0000104 HsapDv:0000001 entire lifespan life cycle stage zygote stage