Final answer:
The salivary glands, canines, incisors, and molars all have an effect on mechanical digestion in the mouth.
Step-by-step explanation:
The salivary glands, canines, incisors, and molars all have an effect on mechanical digestion in the mouth. The salivary glands produce saliva, which contains enzymes that help break down food. The canines, incisors, and molars are types of teeth that aid in physical digestion by chewing and grinding food.
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