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more general categories information about this item 10. Biology and Chemistry 10. Biology and Chemistry Biology and Chemistry (144) Species (46) description: Life cycle stages for Human. Classes include prenatal stage, 1 month-old human stage, 21-year-old human stage, human adult stage, and 100-year-old human stage. AFDSI imports Human Developmental Stage Ontology. complete name: Human Developmental Stage Ontology