What event triggers meiosis II in a secondary oocyte?
A) Entry of sperm nucleus into oocyte cytoplasm
B) Sperm cells breaking through the corona radiata
C) Ovulation of the oocyte
D) Implantation into uterine lining
Correct Answer:
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Q16: What forms the placental membrane?
A) The embryonic
Q17: Fetal blood passes from the right atrium
Q18: Factors that can cause malformations by affecting
Q19: Development includes growth and is a continuous
Q20: The ductus arteriosus carries blood from the
Q22: Where does fertilization normally occur?
A) In the
Q23: What is the role of the hormone
Q24: Which of the following indicates the correct
Q25: Immediately following birth, the newborn's metabolic rate
Q26: From what vessels do the umbilical arteries
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