a vacuole
Cytoplasm is the clear fluid that is found inside of the cell. A membrane-bound, fluid-filled sac is the vacuole.
A central vacuole is in a plant cell, it has a very large fluid-filled sac used for strength and support. The central vacuole also has toxic molecules and storage molecules.
Amniotic sac
It's a vacuole.
Amnion
Cytoplasm is the clear fluid that is found inside of the cell. A membrane-bound, fluid-filled sac is the vacuole.
Vacuole Actually its the Chloroplast!
A central vacuole is in a plant cell, it has a very large fluid-filled sac used for strength and support. The central vacuole also has toxic molecules and storage molecules.
A closed sac with fluid in it
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In the first developmental stage of the embryo, you have the ball of cells. In this ball of cells you have cavity filled with fluid called amniotic fluid. This fluid sac separates the embryo, from the outer non-embryo cells. Later on it encloses the fetus in amniotic fluid to give amniotic sac. This sac is attached to uterus from inside.
Amniotic sac
its amniotic sac filled with amniotic fluid
an amnion
Amniotic sac
it is the amneotic fluid.
The inner most membrane is the fluid filled amniotic sac, next is the yolk sac, where the first blood cell originates. The allantois forms near the yolk sac, while the chorion surrounds all the other ones.