Final answer:
d) Hematology is the study of blood, which includes the cellular components, blood typing, the process of hemostasis, and hemopoiesis. It also involves studying blood disorders and blood clotting mechanisms.
Step-by-step explanation:
The study of blood is known as hematology. Hematology encompasses various aspects of blood, including its cellular components like erythrocytes (red blood cells), leukocytes (white blood cells), and platelets. In addition, it involves the study of blood disorders, blood typing, and the physiological process of hemostasis, which is how the body stops bleeding. Doctors and scientists in this specialty also examine how stem cells in the bone marrow, through a process called hemopoiesis, give rise to the different cellular components of blood. Furthermore, hematology includes the study of blood clots and blood clotting disorders like hemophilia.