question: What do some scavengers use from dead snails for homes?
choices.text: food shells tissue biomass backbones sponges body slugs
choices.label: A B C D E F G H
fact2: Most crabs are scavengers, such as the typical hermit crab .
combinedfact: some scavengers use the shells of dead snails for homes
formatted_question: What do some scavengers use from dead snails for homes? (A) food (B) shells (C) tissue (D) biomass (E) backbones (F) sponges (G) body (H) slugs