That can absorb the body and use These nutrients are then converted into energy or for example in building materials Nutrients bio x4 we need to grow but also to replace damaged cells in our body The digestive tract The digestive tract is a system of pipes and body cavities in that condition with the outside world in direct contact Food we bio x4 eat successively passes through the mouth the esophagus the stomach the small intestine the large intestine and the rectum Indigestible food then .

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