Which system helps your body breathe?, Digestive, Respiratory, Circulatory, Excretory, Which organ pumps blood around the body?, Lungs, Stomach, Heart, Kidneys, Which system breaks down food into nutrients?, Digestive, Excretory, Respiratory, Circulatory, Which organs help remove waste from the blood?, Lungs, Kidneys, Heart, Intestines, Which system moves blood through the body?, Respiratory, Digestive, Circulatory, Excretory, Which system removes waste from the body?, Excretory, Digestive, Respiratory, Circulatory, Which organs are the main organs of the Respiratory System?, Heart and veins, Lungs and trachea, Stomach and intestines, Kidneys and bladder, Which organ is most important for digestion after you swallow?, Heart, Stomach, Lungs, Bladder, Which system includes blood vessels (arteries and veins)?, Digestive, Respiratory, Excretory, Circulatory, Where does digestion start?, Lungs, Mouth, Kidneys, Heart, Which organ stores urine before it leaves the body?, Stomach, Bladder, Heart, Liver, Which part carries air to the lungs?, Trachea, Veins, Intestines, Ureters, Which system uses oxygen from the air?, Respiratory, Digestive, Excretory, Circulatory, Which system helps your body use nutrients from food?, Digestive, Respiratory, Circulatory, Excretory, Which organ absorbs most nutrients from food?, Small intestine, Heart, Lungs, Bladder, Which pair belongs to the Circulatory System?, Lungs + trachea, Kidneys + bladder, Stomach + intestines, Heart + blood vessels, Which pair belongs to the Excretory System?, Heart + arteries, Lungs + bronchi, Kidneys + bladder, Stomach + liver, Which pair belongs to the Digestive System?, Lungs + trachea, Stomach + intestines, Heart + veins, Kidneys + ureters.

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