1) Which system works with the circulatory system to deliver oxygen to the body’s cells? a) Nervous System b) Respiratory System 2) What system sends signals to the muscles to create movement? a) Skeletal System b) Digestive System c) Nervous System 3) Which body system breaks down food so nutrients can be transported by the circulatory system? a) Digestive System b) Muscular System c) Respiratory System 4) What system works with the skeletal system to help you move? a) Circulatory System b) Muscular System c) Respiratory System 5) Which system removes carbon dioxide from the blood? a) Digestive System b) Nervous System c) Respiratory System  6) What system works with the muscular system during exercise to provide oxygen? a) Nervous System b) Respiratory System 7) Which body system protects internal organs like the lungs and heart? a) Digestive System b) Skeletal System  8) Which two systems work together to help your body respond to sudden danger? a) Skeletal and Circulatory Systems b) Nervous and Muscular Systems 9) What organ in the digestive system absorbs nutrients into the bloodstream? a) Stomach b) Intestine  c) Liver d) Heart 10) Which system helps regulate the rate of breathing and heart rate? a) Digestive System b) Nervous System  c) Skeletal System d) Respiratory System

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