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Home Q & A Board Biology-Related Homework Help Medicine Immunology
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sarthaknitw sarthaknitw
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6 years ago
Primary lymphoid tissues are the sites where lymphocytes _______, whereas secondary lymphoid tissues are the sites where lymphocytes _______.
 
  a. are stimulated; develop and mature
  b. encounter pathogens; undergo apoptosis
  c. develop and mature; become stimulated
  d. undergo clonal selection; differentiate from hematopoietic stem cells
  e. die; are phagocytosed after death.
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Flamebrain920Flamebrain920
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