question: What is used for protection by rattlesnakes against eagles?
choices.text: keratin predation A hinged joint Stomata closing wings camouflage fur guard cells
choices.label: A B C D E F G H
formatted_question: What is used for protection by rattlesnakes against eagles? (A) keratin (B) predation (C) A hinged joint (D) Stomata closing (E) wings (F) camouflage (G) fur (H) guard cells