How does the embryo receive nutrients in the mother's womb?
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There are some structures ka chronic villi which are surrounded by uterine tissue and maternal blood . These chronic villi and uterine tissues make joint functional unit ka placenta ...which provide O2 , nutrients and help in the removal of waste and CO2 as well.
Chronic villi are finger like projections on the outer layer of the blastocyst ka trophoblast.
Blastocyst is a few cell based embryo with a cavity ...
Hope it will help you,
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