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The protective sac around the embryo or fetus is the amniotic sac.
The embryo or fetus is contained in a sac filled with amniotic fluid, commonly referred to as the bag of water.
The embryo/fetus would die.
Placenta, umbilical cord, fetus, amniotic sac with amniotic fluid. Basically everything related to the fetus.
Amniotic sac
Amniotic fluid surrounds your baby during pregnancy.
The amniotic sac is the sac in which the fetus develops in amniotes. Its wall is the amnion, the inner of the two fetal membranes. It encloses the amniotic cavity and the embryo.
The developing embryo is nourished by the yolk sack until implantation. Upon implantation the placenta begins to develop, the placenta acts as the fetal lung , it transports oxygen to the fetus and carbon dioxide away from the fetus via the umbilical cord. The placenta also provides stored carbs for the developing fetus.
This cluster of cells change the baby grows from pre-embryo to embryo to fetus.
The uterus. In placental mamals, this is via the placenta.
62 days
everything. It is the way the fetus gets all it needs from the mother and disposes of of practically all waste except heat. The fetus gets nutrients and oxygen from the placenta and the placenta filters the fetus' blood and takes out wastes