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killian killian
wrote...
Silver Member
Posts: 6024
10 years ago
Surface fragments on pathogens that cause leukocytes to produce antibodies to destroy them   
      are called ______.   
      a.   antigens                        c.   endocrines   
      b.   lymphocytes                     d.   platelets
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Smiling Face with Open Mouth
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Answer accepted by topic starter
f_zah1f_zah1
wrote...
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Posts: 10774
10 years ago
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