question: Protective plates over the ends of the fingers are made of what?
choices.text: keratin tissue a metal bone iron oxide tiny hairs antigens Cartilage
choices.label: A B C D E F G H
fact2: Fingernails are also made of keratin.
combinedfact: protective plates over the ends of the fingers are made of keratin
formatted_question: Protective plates over the ends of the fingers are made of what? (A) keratin (B) tissue (C) a metal (D) bone (E) iron oxide (F) tiny hairs (G) antigens (H) Cartilage