Write
a 1200-word paper that includes the following:
 
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Summarize the biology of B lymphocytes, from origin to surface molecules.
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Summarize the biology of T lymphocytes, from origin to surface molecules.
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Analyze the reactions of T and B lymphocytes with each other as well as with other cell types.
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Explain the importance of cytokines and their receptors in immune system development and responses.
 
Format
your paper consistent with APA guidelines.
 
Use at least 3 to 5 different references in your paper.