Blood cells are produced by _____ in the human body March 11, 2021 / By Preparation Point / FBR Inspector inland revenue past papers Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedInA) Liver B) Bone-marrow C) Heart D) Spleen Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn