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dakcow1 dakcow1
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6 years ago
The heart muscle relaxes during:
 
  a. Bradycardia
  b. Tachycardia
  c. Systole
  d. Diastole
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Jessicamontes18Jessicamontes18
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6 years ago
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dakcow1 Author
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6 years ago
Good timing, thanks!
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This calls for a celebration Person Raising Both Hands in Celebration
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2 hours ago
This site is awesome
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