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drewwmary drewwmary
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6 years ago
Human infants begin smiling shortly after birth as a result of:
 
  a. Happy moods.
  b. cephalocaudal development.
  c. Seeing their mother.
  d. Spontaneous CNS activity.
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YascheerYascheer
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6 years ago
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drewwmary Author
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6 years ago
Thank you, thank you, thank you!
dearsophia21
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
SlimyPencil
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2 hours ago
This site is awesome
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