1) It involves obtaining nutrients from food for our body to use. a) Respiratory system b) Circulatory system c) Excretory system d) Digestive system 2) Nutrients are used for ... a) Staying hydrated b) Getting energy c) Feeding cells d) Helping to grow and repair the body 3) It involves obtaining oxygen from the air. a) Respiratory system b) Circulatory system c) Excretory system d) Digestive system 4) Which system carries nutrients and oxygen around the body? a) Respiratory system b) Circulatory system c) Excretory system d) Digestive system 5) Which system eliminates the waste products in our body? a) Respiratory system b) Circulatory system c) Excretory system d) Digestive system 6) Which system collects the waste products? a) Respiratory system b) Circulatory system c) Excretory system d) Digestive system 7) Which system takes nutrients out of food? a) Respiratory system b) Circulatory system c) Excretory system d) Digestive system 8) Waste products are removed by the excretory system. True or false? a) True b) False

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