Select your answer:

Topics:
Cell Review Hospital Departments Neurons History of Psychology Cell Cycle; Cancer Neurological Disorders Integumentary and Musculoskeletal Systems Hair Evidence Foodborne Illness Pediatrics Medical Suffixes Bone Physiology Safety Terms Body System Interactions Ortho Ward SimulationOther quiz:
The Digestive System › ViewEverything you do needs energy. Where does this energy come from?
A. Air
B. Home
C. Food
Eye and Ear › View
What part of the eye controls how much light enters the black hole (pupil) in the center of the eye?
A. optic nerve
B. pupil
C. cornea
D. iris