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zygote
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What stage of development does the amniotic sac form?
zygote
What is a amnion sac mean?
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.
Does a grasshopper have an amniotic sac?
Grasshoppers do not have an amniotic sac. Animals with amniotic sacs are mammals and birds that have a sac for the fetus to grow and gain nourishment from.
What is the protective sac around the developing embryo or fetus is the?
The protective sac around the embryo or fetus is the amniotic sac.
Similarities in the development of this early stage of life such as the presence of an amniotic sac show organisms are related?
Embryo
What protects a fetus during pregnancy?
The mother's immune system.
What are the functions of the amniotic sac and fluid?
Amniotic sac and fluid has a protective functions for the fetus. This sac separates the fetus from the mothers tissue.
Which abnormal sac contains fluid gas or semisolid material?
its amniotic sac filled with amniotic fluid
Do identical twins share the same amniotic sac?
It can be either. Sometimes they are in their own individual sac, and in other instances they share one amniotic sac.
Fetus is protected by what?
The amniotic sac and amniotic fluid inside the womb.
What is amniotic membrane?
The thin tissue that creates the walls of the amniotic sac.
What animals have an amniotic sac?
birds
