Multiple choice general knowledge science & technology Red Blood Corpuscles are formed in Liver Bone Marrow Kidneys Heart Reveal answer Fill a bubble to check yourself B Correct answer Explanation Red blood cells (erythrocytes) are produced in the bone marrow through erythropoiesis, primarily in the flat bones like sternum, pelvis, ribs, and vertebrae. The liver, kidneys, and heart have other essential functions but don't produce RBCs.