The __________ attaches to the endometrium on about the 7th day of development.
A) morula
B) embryo
C) blastocyst
D) zygote
Correct Answer:
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Q12: The embryonic stage of development is completed
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Q14: The _ is responsible for forming the
Q15: The _ becomes part of the umbilical
Q16: The placenta is formed of the following
Q18: Embryonic development begins at the start of
Q19: The _ develop(s) into the chorion during
Q20: The sperm nucleus and ovum nucleus unite
Q21: By about 12 weeks of development, the
Q22: Which of the following is the normal
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