question: What do some amphibians eat?
choices.text: stones bone marrow air Corvidae Other animals liverworts calcium and protein Processed food
choices.label: A B C D E F G H
formatted_question: What do some amphibians eat? (A) stones (B) bone marrow (C) air (D) Corvidae (E) Other animals (F) liverworts (G) calcium and protein (H) Processed food