What peroids oxygen and nutrition to developing embryo into female body?
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ᴛʜᴇ ᴘʟᴀᴄᴇɴᴛᴀ
ᴀ ᴘʟᴀᴄᴇɴᴛᴀ, ᴄᴏɴɴᴇᴄᴛᴇᴅ ʙʏ ᴀɴ ᴜᴍʙɪʟɪᴄᴀʟ ᴄᴏʀᴅ, ᴅᴇᴠᴇʟᴏᴘs ғʀᴏᴍ ᴛʜᴇ ᴇᴍʙʀʏᴏ. ᴛʜᴇ ᴘʟᴀᴄᴇɴᴛᴀ ᴀɴᴄʜᴏʀs ᴛʜᴇ ᴇᴍʙʀʏᴏ ɪɴ ᴛʜᴇ ᴜᴛᴇʀᴜs. ɪᴛ ᴀʟsᴏ ᴀʟʟᴏᴡs: ɴᴜᴛʀɪᴇɴᴛs ᴀɴᴅ ᴏxʏɢᴇɴ ᴛᴏ ᴍᴏᴠᴇ ғʀᴏᴍ ᴛʜᴇ ᴍᴏᴛʜᴇʀ ᴛᴏ ᴛʜᴇ ᴇᴍʙʀʏᴏ.
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Six to 10 days after fertilization, the embryo attaches, or implants, itself into the lining of the uterus. During the next week or so, the embryo receives its nourishment and oxygen from the cells that make up the lining of the uterus.
The placenta
A placenta, connected by an umbilical cord, develops from the embryo. The placenta anchors the embryo in the uterus. It also allows: nutrients and oxygen to move from the mother to the embryo.
Explanation:
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