question: What makes bagels easier to chew?
choices.text: cilia friction saliva Vitamin D bile keratin heat Chemicals
choices.label: A B C D E F G H
fact2: Brain food Bagels are brain food.
combinedfact: Bagels get easier to chew by being moistened by saliva from the salivary glands.
formatted_question: What makes bagels easier to chew? (A) cilia (B) friction (C) saliva (D) Vitamin D (E) bile (F) keratin (G) heat (H) Chemicals