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Which is a primary lymphoid organ ? (A) Spleen (B) Lymph node (C) Peyer’s patch (D) None of these
Which is a primary lymphoid organ ? (A) Spleen (B) Lymph node (C) Peyer’s patch (D) None of these
biology | Previous year question
Which is a primary lymphoid organ ? (A) Spleen (B) Lymph node (C) Peyer’s patch (D) None of these

Correct option:(D) None of these

Explanation:

Primary lymphoid organs: 

  • Organs include the bone marrow and the thymus. 
  • They create special immune system cells called lymphocytes.
  • Organs where the cells of the immune system do their actual job of fighting off germs and foreign substances.

 

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