Skin System - first barrier for protection, regulates body temperature, Respiratory System - exchanges oxygen and carbon dioxide , Circulatory System - moves blood around the body, Digestive System - breaks down food , Skeletal System - supports and protects the body, Muscular System - moves the body and internal organs, Excretory system - removes liquid waste from the body, Reproductive system - produces offspring, Immune system - fights off invaders and disease, Nervous System - controls all body functions,

Body Systems

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