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