Pollution has made eating fish a risk for expectant mothers since it may contain high levels of
A) lead.
B) sulfur.
C) mercury.
D) nitrogen.
Correct Answer:
Verified
Q1: Implantation is when
A) the blastocyst attaches to
Q2: Organogenesis is the process of
A) zygotic creation.
B)
Q4: When does organogenesis take place?
A) during conception
B)
Q7: The outer layer of cells that develops
Q9: What is the embryo's outermost layer of
Q11: All of the following are embryonic layers,except
A)
Q12: The embryo's inner layer of cells is
Q14: Which of the following is not a
Q18: The umbilical cord consists of
A) a single
Q19: Fertilization occurs when one single sperm unites
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