placenta
The protective sac around the embryo or fetus is the amniotic sac.
the fetus is in the yolk sac
No, a sac grows to accommodate the fetus and if the fetus us dead it does not grow anymore.
Amniotic sac and fluid has a protective functions for the fetus. This sac separates the fetus from the mothers tissue.
sac in which the fetus develops in amniotes
The fetus is enclosed in the amniotic sac, which is a fluid-filled membrane that provides protection and cushioning during pregnancy.
The fluid-filled sac surrounding the developing embryo or fetus is called the amniotic sac. It is filled with amniotic fluid that protects and cushions the fetus, helping to regulate its temperature and provide room for movement.
The Amniotic Sac is the sac that contains the baby.
The chorionic membrane is a thin, outermost membrane that surrounds the fetus in the womb. It is composed of layers of cells derived from both the embryo and the mother and plays a role in the exchange of nutrients and waste between the fetus and the mother. The chorionic membrane eventually fuses with the amniotic membrane to form the amniotic sac.
the womb or amniotic sac
fetus
amniotic sac