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1.
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FAQ120
What is the digestive system?
The digestive system is a series of hollow organs joined in a long-looping tube. It includes the mouth, esophagus, stomach, intestines (bowels), rectum, and anus. It als...
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May 2011
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2.
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SP120
Su sistema digestivo descompone los alimentos que consume y permite que su cuerpo absorba los nutrientes. Su cuerpo necesita nutrientes para crecer y producir energia. Algunos problemas del sistema d...
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October 2010
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