question: large animals that roamed the earth were replaced with what after their extinction
choices.text: fungus protozoa arachnids backbones bacteria death arthropods mammals
choices.label: A B C D E F G H
formatted_question: large animals that roamed the earth were replaced with what after their extinction (A) fungus (B) protozoa (C) arachnids (D) backbones (E) bacteria (F) death (G) arthropods (H) mammals