question: Whose shells do hermit crabs take?
choices.text: chelonians Porifera jellyfish coral paramecium arachnids gastropods sponges
choices.label: A B C D E F G H
fact2: Gastropods are snails and slugs.
combinedfact: Hermit crabs use shells of gastropods for homes.
formatted_question: Whose shells do hermit crabs take? (A) chelonians (B) Porifera (C) jellyfish (D) coral (E) paramecium (F) arachnids (G) gastropods (H) sponges