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emz123 emz123
wrote...
Posts: 381
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6 years ago
Capillaries are only one cell thick. They do which of the following?
 
  A)
 
  exchange nutrients
  B)
 
  exchange oxygen
  C)
 
  exchange wastes
  D)
 
  all of the above
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Replies
wrote...
6 years ago
Answer:

D
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