Author Question: Approximately how long following fertilization does the mother's heart drive blood through ... (Read 173 times)

maychende

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Approximately how long following fertilization does the mother's heart drive blood through
  embryonic bloodstream?
 
  A) Less than one week
  B) Three weeks
  C) Five weeks
  D) Seven weeks

Question 2

An embryo begins to show signs of undifferentiated internal and external genitalia at about what age during prenatal development?
 
  A) 24 hours
  B) 24 days
  C) 23 weeks
  D) 56 weeks



strudel15

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Answer to Question 1

B

Answer to Question 2

This is great. Thanks



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