Memory Bones, Muscles, LungsVersion en ligne Skeletal and Muscular System par Elizabeth Lowes Cigarettes Made from Tobacco plant Longest Bone Jaw muscle INvoluntary muscle ribcage Leg / Thigh bone (Femur) Oxygen Mineral that makes bones strong Skull Protects Heart and Lungs Strongest muscle Protects Brain Protein Breath OUT Intestines Calcium Food Group that builds muscle Carbon Dioxide Breathe IN
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