1) It controls your body and helps you think. a) bones b) brain c) skin 2) organs in your body working together are called   a) body systems b) body groups c) body organs 3) I am the body system responsible for processing the food you eat to release nutrients. a) Digestive system b) Respiratory system c) circulatory system 4) I am a vital gas for tissues and organs a) oxygen b) carbon dioxide c) nitrogen 5) I am the body system responsible for getting oxygen from the air a) Respiratory system b) digestive system c) skeletal system 6) When you inhale you breathe in (a) when you exhale body get rid of (b)   a) a) Oxygen b) Carbon dioxide b) a) Oxygen b) Nutrients c) a) Carbon dioxide b) Water 7) which body system gives you support and protects internal organs a) skeletal system b) digestive system c) circulatory system

Review for circulatory system 2

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