Discuss how the development of an artifi cial placenta is an important step in the study of premature births. In your answer, be sure to: • explain why it would be harmful for a human mother’s blood to pass across the placenta and into the fetus state how an artificial placenta would be of benefit to the lungs of premature infants explain why the lambs’ blood must be filtered as it circulates through the artificial placenta state one reason why premature lambs were likely used as model organisms in this study rather than mice

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