A placenta is a bodily structure that allows nutrient and gases to pass between the mother and the [[embryo]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia
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A '''placenta''' is a bodily structure that allows nutrient and gases to pass between the mother and the [[embryo]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia