Which system is especially involved when you breathe in deeply?, Respiratory system, Immune system, Circulatory system, Which system is especially involved when your heart pumps faster during a run?, Immune system, Respiratory system, Circulatory system, Which system is especially involved when your body fights off a cold?, Respiratory system, Immune system, Circulatory system, Which system is especially involved when oxygen moves into your lungs?, Immune system, Respiratory system, Circulatory system, Which system is especially involved when blood carries nutrients around the body?, Respiratory system, Immune system, Circulatory system, Which system is especially involved when a cut becomes red and swollen to fight germs?, Immune system, Circulatory system, Respiratory system, Which system is especially involved when you exhale after blowing up a balloon?, Respiratory system, Immune system, Circulatory system, Which system is especially involved when your pulse can be felt in your wrist?, Immune system, Respiratory system, Circulatory system, Which system is especially involved when white blood cells attack bacteria?, Circulatory system, Immune system, Respiratory system, Which system is especially involved when air passes through your windpipe?, Circulatory system, Immune system, Respiratory system, Which system is especially involved when your blood picks up oxygen from the lungs?, Circulatory system, Respiratory system, Immune system, Which system is especially involved when your body makes antibodies after an infection?, Circulatory system, Immune system, Respiratory system, Which system is especially involved when you cough to clear your airways?, Immune system, Circulatory system, Respiratory system, Which system is especially involved when blood flows from the heart to the muscles?, Circulatory system, Respiratory system, Immune system, Which system is especially involved when your body recognizes and destroys a virus?, Respiratory system, Immune system, Circulatory system

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