what is the function of digestive system?, for pump blood, for moving, for breathing, for digest food and consume vitamin and nutrients, Which part of digestive system to break down the food?, brain, lungs, stomach acid, heart, Which food can make our digestive system always healthy?, burger, chips, fries, vegetables, which organ that bring our food to the stomach?, esophagus, heart, nose , rectum, what is the other name of "trachea"?, air ways, esophagus, tiny air sacs, stomach.

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