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Script: Mumashure memasvondo mana mvura inonzi "amnion" inokomberedza "embryo" igozadza munogara zai. Iyi mvura haina hutachiona uye inonzi "amniotic fluid", uye ndiyo inodzivirira "embryo" kuti isakuvadzwe. | ||
| All ages referenced to fertilization, not last menstrual period. |