Embryos of placental mammals
How embryos of placental mammals release nitrogen wastes?
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Placental animals, with embryos, release the urea. In the adult placental mammal, urea is secreted through urine. In embryos, the molecule passes to the blood of the mother through the placenta and it is released in the mother’s urine.
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In ancient Greece, father of the Medicine, Hypocrates, explained the phenomenon of diagnosing diabetes mellitus by tasting the patient's urine. Specify the physiological explanation for this archaic method?
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