Answer :
Final answer:
Teeth serve important functions such as chewing food, aiding in speech, and enhancing facial expressions.
Explanation:
Chewing food: Teeth play a crucial role in the mechanical digestion process by breaking down food into smaller pieces when chewing.
Aid in talking and making sounds: Certain teeth, such as the incisors and canines, help in forming different sounds when speaking.
Smiling: Teeth contribute to facial expressions, including smiling, which is an important social and communication gesture.
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