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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.

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10y ago
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9y ago

The membrane that forms a sac around an animal embryo is called the amniotic sac. The embryonic sac is a bag of fluid inside of a woman's womb where the unborn baby develops and grows.

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11y ago

Amniotic sac.

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15y ago

Amnion

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13y ago

Amnion

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amnion

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14y ago

amnic

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Q: What is the membrane that forms a sac around an animal embryo?
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Related questions

Is the membrane that forms a sac around an animal embryo.?

The membrane that forms a sac around an animal embryo is called the amniotic sac. The embryonic sac is a bag of fluid inside of a woman's womb where the unborn baby develops and grows.


What is the name for the protective structure that forms around an embryo?

Amniotic membrane or amniotic sac, containing the embryo and amniotic fluid.


Which part of animal forms a thin layer around the outside?

cell membrane


Which part of an animal forms a thin layer around outside?

cell membrane


Which part of an animal forms a thin layer around The outside?

cell membrane


What forms durining telophase in animal mitosis?

Nucleolus is formed in nucleus.Nuclear membrane formed around.


What is the name for the protective structure that forms around an embryo embryo?

Placenta.


What is the name for the protective structure that's forms around an embryo?

Placenta.


What is the name for the protective structure that forms around embryo?

Placenta (Apex)


What is the name for the protective protective structure that forms around an embryo?

Placenta.


What forms an envelope around the cell described as and selectively permeable?

The plasma membrane (cell membrane).


Cell membrane that forms a pouch around a substance?

It is endocytosis