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Script: Phakathi kuka 3 no 4 wamaviki, isakhiwo somzimba siyavela ngesikhathi ubuchopho, umgogodla, nenhliziyo kombungu sekubonakala kalula eceleni kwe-yolk sac. Ukukhula ngamandla kudala ukusongeka kombungu owendlalekile. Lo luhlelo luhlanganisa ingxenye ye-yolk sac ontwentwesini lomgudu wokugaya ukudla bese lwakha imigodi yesifuba nowesisu yomuntu okhulayo. 4 AMAVIKI | ||
All ages referenced to fertilization, not last menstrual period. |