[Solved] Some researchers question the existence of multiple personalities and see only differences in ____ of different emotional states. A) constellations B) preparation C) representations D) symptoms Chemistry And Hematology: Branches of medical science; chemistry focuses on the chemical composition and processes in the body, while hematology studies the blood and its disorders. Routine Tests: Standard medical tests performed during a physical examination or check-up to monitor and maintain overall health and detect any possible diseases or conditions early. Optical Microscope: A type of microscope that uses visible light and a system of lenses to magnify objects, allowing for the observation of small details not visible to the naked eye. Illuminating: Providing light to an area or making something clearer and more understandable.