CBSE Class 11-science Answered
When the foetus is breathing within the mother body it takes up the O2 from Mother blood. Then how placenta maintains the Rh-ve blood of Mother separated from Rh +ve blood of foetus from mixing?
Asked by vinitamalaviya | 04 May, 2016, 10:39: AM
Expert Answer
Placenta is a barrier between mother's blood and foetus' blood.
Howeve, it allows the diffusion of nutrients and gas exchanges from mother's blood to foetus' blood and vice a versa.
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