question: What makes cartilaginous fish great predators?
choices.text: bone deformities animals in Class Aves Muscles in the upper arm. crocodiles large back muscles razor-sharp teeth A hinged joint catching prey
choices.label: A B C D E F G H
formatted_question: What makes cartilaginous fish great predators? (A) bone deformities (B) animals in Class Aves (C) Muscles in the upper arm. (D) crocodiles (E) large back muscles (F) razor-sharp teeth (G) A hinged joint (H) catching prey