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