question: Scales provide what and reduce friction with the water?
choices.text: Pectorals recyclable Muscles resources camouflage marks A hinged joint contact
choices.label: A B C D E F G H
formatted_question: Scales provide what and reduce friction with the water? (A) Pectorals (B) recyclable (C) Muscles (D) resources (E) camouflage (F) marks (G) A hinged joint (H) contact