Matching Pairs Human Body Systems Interactions - MATCHING - PART IOnline version Human Body Systems Interactions - Matching by Benjamin D Morgan 1 The variable we keep the same in an experiment 2 gets nutrients out of food to help the kidneys 3 brings oxygen into the body that will be delivered to the brain 4 sends messages to bring oxygen in and carbon dioxide out 5 delivers gases and nutrients to the brain 6 gets nutrients (protein) out of food to help the muscles 7 sends messages to let body know the bladder is full 8 helps control the speed food is broken down 9 gets nutrients out of food that help the brain 10 get nutrients out of food that help the heart 11 brings oxygen into the body to give to the muscles 12 The variable we change in an experiment. 13 brings oxygen to give to the red blood cells and also get carbon dioxide from the red blood cells 14 The variable we measure in an experiment. 15 brings oxygen into the body to give to the kidneys 16 brings oxygen into the body that will be delivered to the small intestine 17 sends messages to make the heart beat Independent Variable Controlled Variable Dependent Variable