WE HAVE AN AMAZING BODY Bone marrow makes red blood cells at a rate of 2.4 million per second. That is what I said-2.4 million per second. Red blood cells, most white blood cells, and platelets are produced in the bone marrow, the soft fatty tissue inside the bone cavities. Picture the marrow as a blood cell producer. During production, blood stem cells in the bone marrow are programmed to produce different types of blood.Red blood cells carry oxygen...