Answer:
Sistema digestivo
Explanation:
Los principales sistemas del cuerpo humano son:
Sistema respiratorio, sistema circulatorio, sistema nervioso, sistema inmune, sistema digestivo, sistema óseo, sistema urinario, sistema reproductor y sistema muscular.
Como dice el enunciado, el estómago comienza a digerir los alimentos haciendo parte, así, del sistema digestivo cuya función es digerir los alimentos y absorber sus nutrientes.
Saliva contains an enzyme that breaks down STARCH.
The digestion process usually starts in the mouth. The saliva contain an enzyme called ptyalin, which act on the starch in the eaten food and break it down to simple sugars. This enzyme is secreted by the salivary gland and it helps in the pre digestion of starches.
These characteristics are examples of emergent properties.