embryo
Noun
-
is a type of: animal, animate being, beast, brute, creature, fauna - a living organism characterized by voluntary movementsubtypes:
- blastosphere, blastula - early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
- gastrula - double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
- morula - a solid mass of blastomeres that forms when the zygote splits; develops into the blastula
has: umbilical, umbilical cord - membranous duct connecting the fetus with the placentasame as: conceptus, fertilized egg
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