During the digestion process, the first step would be mastication, lubrication with the saliva, and later on is being formed into a bolus. Bolus is the term used for food substance that is turned into small balls. When the bolus is formed, this is then pushed or moved to the stomach.
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Seismology: The branch of science studies of earthquakes and the movement of waves through the earth.
A. Both prescription and over the counter drugs are dangerous if you do not follow the directions on the bottle