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the surface features of a place or region
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good at finding solutions to problems
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| the four systems that work together to move materials through your body; digestive, respiratory, circulatory, and excretory |
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the organ system that brings oxygen to the lungs and then to the body cells and gets rid of carbon dioxide
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the organ system that uses the heart, blood, and blood vessels to move materials to and from the cells
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the organ system that uses the skin, lungs, and kidneys to move wastes from the body
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the organ system that uses the mouth, stomach, and small intestines to turn food into nutrients that the cells of the body can use
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a watery fluid that softens and moistens food
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the long muscular tube that brings food into the stomach
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a muscular organ that changes food into a thick soupy liquid
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the organ that completes digestion and allows digested food to enter the blood
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the thick tube-like organ that removes undigested waste
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a large, flat muscle that pulls air in and pushes air out of the lungs
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one of two organs that fills with air when you inhale
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a tiny blood vessel
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air sacs in the lungs where gases move into and out of the blood
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the blood cell that carries oxygen and carbon dioxide in the blood
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a blood vessel that carries blood back to the heart
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a thick-walled blood vessel that carries blood away from the heart
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