Which term describes the process of forming new blood cells?

The term that describes the process of forming new blood cells is "erythropoiesis." This process specifically refers to the production of red blood cells (erythrocytes) in the body, which is critical for transporting oxygen throughout the bloodstream. Erythropoiesis primarily occurs in the bone marrow and is regulated by various factors, including erythropoietin, a hormone produced by the kidneys in response to low oxygen levels.

Understanding this term is essential in fields such as hematology and medicine, as it is foundational for comprehending blood health, oxygen transport, and related disorders, such as anemia. The other options present different processes related to blood components but do not pertain to the formation of new blood cells specifically. Hemolysis refers to the breakdown of red blood cells, coagulation is the process of blood clotting, and leukopoiesis pertains to the formation of white blood cells (leukocytes).