Question

Question 6: Name the primary and secondary lymphoid organs.

Class 12 - Biology - Human Health and Disease Page 164

Answer 1

primary=the red bone marrow and the thymus gland
secondary= tonsils , spleen

Answer 2

Hey there,

→Primary organs are Thymus and Bone marrow.

→Secondary lymphoid organ are Payers patches, spleen ,tonsils etc.

Thanks!