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JaySanz JaySanz
wrote...
Posts: 855
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6 years ago
Aging may be the result of __________.
 
  a. environmental factors
  b. social and cultural stresses
  c. the cumulative effect of diseases during life and exposure to toxins
  d. accumulated DNA damage, free radical action, and pleiotropic gene effects
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wrote...
6 years ago
Correct Answer: d
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