The placenta serves as an interface between the embryonic and maternal bloods for the exchange of the following substances except
A) antibodies.
B) white blood cells.
C) hormones..
D) wastes.
Correct Answer:
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Q6: During embryonic development, the following major events
Q7: Once a sperm enters a secondary oocyte,
A)meiosis
Q8: The embryonic membranes include the following structures
Q9: Fertilization usually occurs in
A)uterine tube.
B)ovary.
C)vagina.
D)uterus.
Q10: The _ develop(s) into the germ layers
Q12: The embryonic stage of development is completed
Q13: A secondary oocyte remains viable for about
Q14: The _ is responsible for forming the
Q15: The _ becomes part of the umbilical
Q16: The placenta is formed of the following
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