1) What gas do we breathe in? a) Oxygen b) Carbon dioxide 2) What gas do we breathe out? a) Oxygen b) Carbon dioxide 3) We breathe in through our… a) Nose and mouth b) Lungs only 4) Where does the air go? a) Lungs b) Heart 5) What carries oxygen around the body? a) Blood b) Kidneys 6) Which muscle under the lungs helps us breathe? a) Diaphragm b) Liver 7) Which system works with the respiratory system to carry oxygen? a) Circulatory b) Digestive 8) When we breathe out, what leaves the body? a) Carbon dioxide b) Nutrients 9) The respiratory system helps us… a) Pump blood b) Breathe 10) What organ is directly under the lungs? a) Diaphragm b) Heart 11) Carbon dioxide is… a) Not needed b) Needed by the body 12) We breathe in through ... a) nose b) mouth c) nose and mouth

4EP_NS_U1_Respiratory_System_Quiz 🌬️

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