The process of chewing, smashing, and grinding food in the mouth is called peristalsis

mechanical digestion

absorption

chemical digestion

B. mechanical digestion

Explanation:Chewing or mastication is the process by which food is crushed and ground by teeth. During the mastication process, the food is positioned by the cheek and tongue between the teeth for grinding. The muscles of mastication move the jaws to bring the teeth into intermittent contact, repeatedly occluding and opening.

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