katana2a katana2a

15-04-2021
Biology

contestada

The exchange of nutrients and gases between a developing
human embryo and its mother occurs between circulatory
fluids located within the
1) umbilical cord
3) manmary glands
2) placenta
4) yolk

Respuesta :

taralackert taralackert

15-04-2021

I think it’s the umbilical cord

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