Biology · PYQ NEET UG 2026
हिन्दीWhich of the following are secondary lymphoid organs? (a) Bone marrow (b) Tonsils (c) Spleen (d) Thymus Choose the correct answer from the options given below :
Correct answer · Option 2
(b) and (c) only
Explanation
Bone marrow and thymus are primary lymphoid organs, whereas spleen and tonsils are secondary lymphoid organs.