1) intestines a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 2) the control center of the body a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 3) also known as the cardiovascular system a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 4) esophagus a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 5) blood a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 6) Allows you to talk and to smell. a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 7) carries nutrients and oxygen through the body a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 8) spinal cord and nerves a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 9) mouth a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 10) heart a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 11) controls all other body systems a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 12) Brings oxygen into the body a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 13) brain a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 14) When you breath out you lose between 0.5 ounces to 2.0 ounces of water. a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 15) sends messages and signals throughout the body a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 16) arteries and veins a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 17) breaks down food a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 18) stomach a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System 19) lungs a) Digestive System b) Circulatory System c) Nervous System d) Respiratory System

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