The period of the zygote
A) lasts about two weeks.
B) lasts from implantation through the eighth week of pregnancy.
C) is the longest prenatal period.
D) is the prenatal period during which the groundwork is laid for all body structures and organs.
Correct Answer:
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Q5: The embryonic disk _.
A) becomes the new
Q13: The yolk sac
A) delivers food and oxygen
Q14: While the senses of sight and sound
Q15: During Michelle's _ month of pregnancy,the eyes,ears,and
Q16: During the period of the embryo,the ectoderm
Q16: During the period of the embryo,the _
Q17: The age of viability
A) is the point
Q21: In the eighth month of pregnancy,
A) fetal
Q22: _ use during pregnancy has been linked
Q23: Dori takes a vitamin A derivative called
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