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                                    What are the organs that are on the outside of our body as called | 
                            
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Answer»  
 The skin, which is actually an organ system, is obviously on the outside of the BODY. It forms a barrier that prevents many harmful substances from ENTERING the body. The digestive system is a long tube that BEGINS at the MOUTH, winds through the body, and EXITS at the anus. please mark me as a brain list 
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