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Script: Phakathi kweemveke ezi 3 ne 4, ihlelo lomzimbha liyathoma njengoba ingqondo, ithambo lomgogodla, nehliziyo ye-embryo zibonakala lula eceleni komgodla womthubi(yolk sac). Ukukhula okuya phambili kubangela ukugoqana kwe-embryo ethabaleleko. Ihlelweli lifaka hlangana incenye yomgodla womthubi endleleni yehlelo lokuphefumula, yakhe isifuba nesikhala samathumbu womuntu okhulako. IIMVEKE EZI-4 | ||
All ages referenced to fertilization, not last menstrual period. |