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Questions  >>  CBSE XII  >>  Biology
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Lymph nodes are secondary lymphoid organs. Explain the roles of lymph nodes in our immune system.&nb

Lymph nodes are secondary lymphoid organs. Explain the roles of lymph nodes in our immune system. 

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Lymphocytes and macrophages are present in lymph nodes. They filter out, immobilize and dispose off pathogens. 
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