amniotic sac
The answer is Amniotic egg.
In the egg, this is called the albumin.
Morula
Seed coat, micropyle, endosperm and embryo are major parts of a seed. The seed coat protects, micropyle allows water to move in, endosperm nourishes the embryo and on germination a new plant emerges from the embryo.
The cotyledon protects the embryo
The embryo or fetus is contained in a sac filled with amniotic fluid, commonly referred to as the bag of water.
connective
Cerebral spinal fluid
Membrane
The Amniotic Membrane.
sea otter
its a koala
uterus
the testa or seed coat
The answer is Amniotic egg.
Placenta.
sea otter