The zygote's outer layer of cells divides rapidly and elongates to form an outer layer called the
A) trophoblast.
B) blastocyst.
C) placenta.
D) amniotic sac.
Correct Answer:
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Q8: During cell division in a zygote, one
Q9: The three major stages of prenatal development
Q10: The _ stage of prenatal development takes
Q11: Approximately _ hours after conception, the fertilized
Q12: The zygote will take _ to travel
Q14: In which stage of prenatal development does
Q15: The formation of the trophoblast and blastocyst
Q16: The trophoblast is the _ layer of
Q17: The blastocyst is the _ layer of
Q18: Which of the following structures differentiates to
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