lori7202 lori7202
  • 26-10-2017
  • Biology
contestada

During prenatal development, the organism depends on the ________ to exchange food and waste products with the mother's blood stream.

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avikeshnirmal2
avikeshnirmal2 avikeshnirmal2
  • 26-10-2017
living embryo depends on the placenta
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