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1. Cleavage produces daughter cells called ________.
 
 
 
 

Question 1 of 9

2. The conceptus, upon reaching the uterus, first ________.
 
 
 
 

Question 2 of 9

3. The inner cell mass of the blastocyst is destined to become the ________.
 
 
 
 

Question 3 of 9

4. Which primary germ layer gave rise to the cells that eventually became the central nervous system?
 
 
 
 

Question 4 of 9

5. What would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst?
 
 
 
 

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6. During what process does the amnion envelop the embryo?
 
 
 
 

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7. The placenta is formed from ________.
 
 
 
 

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8. Critical Thinking: Approximately 3 weeks after her last menstrual period, a sexually active woman experiences a brief episode of abdominopelvic cramping and minor bleeding. What might be the explanation?

Question 8 of 9

9. Critical Thinking: The Food and Nutrition Board of the Institute of Medicine recommends that all women who might become pregnant consume at least 400 µg/day of folate from supplements or fortified foods. Why?

Question 9 of 9