By which period of prenatal development will the placenta be fully formed?
A) embryonic period
B) pre -embryonic period
C) infancy
D) fetal period
Correct Answer:
Verified
Q22: During which process is exposure to teratogens
Q23: Cephalocaudal folding creates the:
A) future trunk region.
B)
Q24: What contributes to the fetal portion of
Q25: The rearrangement and migration of the cells
Q26: What does the ectoderm form?
A) internal epithelial
Q28: What is the first major event of
Q29: By what week of prenatal development will
Q30: Which of the following does NOT occur
Q31: Which of the following steps must occur
Q32: A birth defect known as spina bifida
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