Completar frases Animal reproduction gaps2.Versión en línea Fill in the gaps with the given words. por Gabriel Pérez Comendador 1 zygote meet embryo zygote grow mother's embryo food embryo hatches egg born develops Fertilization occurs when an ovum and a sperm and unite . This union creates a new cell called . The then , starts to divide and grow into an . The embryo until it is ready to survive externally , then it is . In viviparous animals the develops inside the womb . She provides the embryo with the it needs to . In oviparous animals the develops inside an . Then it .
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