Forensic Science Questions with Correct Answers

Blood has been studied to one degree or another for thousands of years. - Answer true In 1728, Sir William Harvey determined that there was a continuous circulation of blood within the body. - Answer flase Sir William Osler discovered platelets in 1874. - Answer true The presence or absence of antigens on white blood cells determines a person's blood type. - Answer flase Blood is the circulating tissue consisting of two types of cells: red blood cells and platelets. - Answer flase Red blood cells: - Answer carry respiratory gases, mainly oxygen and carbon dioxide. The immune system functions to protect our bodies by identifying cells or molecules that are foreign, such as: - Answer parasites. bacteria. . viruses.