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endoderm
chorion
the portion of an embryonic somite from which skeletal musculature is produced
The decidua basalis portion of the endometrium
chorion
The chorion.
The rectum, the final portion of the large intestine, becomes the anal canal.
The brain and spinal cord. The cephalic portion of the nueral tube becomes the brain, the caudal portion becomes the spinal cord.
its when the portion of the umbilical cord that connects to the placenta has no protection at all and it is exposed and vulnerable to ruptures. look for vasa previa
a menstruation , because it becomes irregular which is portion then it stops which is fratiom so, it is irregular and stops .. the answer is menstruation ...
rift valley
The radicle is the name for the embryonic portion of a seed that develops into the root of a plant. The plumele is the name of the embryonic shoot of the plant.