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nicole808 nicole808
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6 years ago
All of the following substances pass through the placenta EXCEPT for
 
  A) nutrients.
  B) oxygen.
  C) waste products.
  D) maternal blood.
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Fireman812Fireman812
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6 years ago
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nicole808 Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
vernonb
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
prime7105
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2 hours ago
this is exactly what I needed
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