A zygote is referred to as an embryo after the zygote
A) has its first cell division.
B) implants itself in the uterine lining.
C) has its first cell differentiation.
D) complete organogenesis.
Correct Answer:
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Q17: The blastocyst is the _ layer of
Q18: Which of the following structures differentiates to
Q19: The embryonic stage of prenatal development has
Q20: The zygote embeds itself into the inner
Q21: The optimal time for implantation is _
Q23: Which stage of prenatal development occurs during
Q24: Dana is seven weeks pregnant. In which
Q25: The outer layer of the cell mass
Q26: The circulatory system and the skeleton are
Q27: The endodermic layer eventually becomes the
A) respiratory
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