The developing embryo receives nutrients and oxygen from the mother's ____. * ovaries * oviduct * blood * lymph Hormones produced by the ____ gland cause changes in the body during puberty. * thyroid * thymus * pituitary * none of the above
1) Well the answer is Umbilical cord, but since it's not there i guess i would have to pick blood. 2) Hormones produced by the ____ gland cause changes in the body during puberty. http://fotoyour.com/images/Games/pituitary-gland-hormones.jpg
isnt it placenta? the umblical cord is just a medium for transport, isnt it?
Well yes, but we can go even further back to the GI passage or central circulation. Umblical cord is the immediate tissue providing the nurishment.
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