question: What do fingers have over the ends that become more brittle with age?
choices.text: tiny hairs far fewer in number protective plates Major effects It's inherited from genes protection changes in size several genes
choices.label: A B C D E F G H
fact2: Fingernails become more brittle with age.
combinedfact: protective plates over the ends of the fingers become more brittle with age
formatted_question: What do fingers have over the ends that become more brittle with age? (A) tiny hairs (B) far fewer in number (C) protective plates (D) Major effects (E) It's inherited from genes (F) protection (G) changes in size (H) several genes