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Script: Emvekeni ezi 3 ingqondo iyahlukana ngeencenye ezi 3 ezisisekelo ezibizwa ngengqondo yangaphambili (forebrain), ephakathi (midbrain), neyangemuva (hindbrain). Ukukhula kwehlelo lokuphefumula nelokugaya ukudla nakho kusendleleni. | ||
All ages referenced to fertilization, not last menstrual period. |