Practice free →
Home › Bihar Board Class 12 (Science) › Biology › Human Health and Disease › Which pair are the primary lymphoid organs in hu…

Which pair are the primary lymphoid organs in humans?

ASpleen and lymph nodes
BBone marrow and thymus
CSpleen and tonsils
DTonsils and appendix
Answer & Solution
Correct answer: B. Bone marrow and thymus
Immature lymphocytes become antigen-sensitive in the bone marrow and thymus, the primary organs.
Solve this in the app — Bihar Board Class 12 (Science) practice & 24k+ MCQs →
Related questions