Examlex
How did astronomers rule out the steady-state model of the Universe in the 1960s?
Uterine
Relating to or associated with the uterus.
Germinal Stage
The initial phase of prenatal development that spans from conception to the implantation of the embryo in the uterine wall.
Blastocyst
An early stage in human embryonic development that consists of a sphere of cells surrounding a fluid-filled cavity and the cluster of cells from which the embryo develops.
Embryonic Stage
The period in prenatal development from the second to the eighth week after fertilization, during which major organs and structures of the organism begin to develop.
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