question: What can bottom dwelling organisms be?
choices.text: humans coliform filter feeders damaging arachnids fire creators ecosystems rock eaters
choices.label: A B C D E F G H
fact2: Bottom dwelling organisms such as coral, urchins, and sponges provide a colorful backdrop.
combinedfact: bottom dwelling organisms can be filter feeders
formatted_question: What can bottom dwelling organisms be? (A) humans (B) coliform (C) filter feeders (D) damaging (E) arachnids (F) fire creators (G) ecosystems (H) rock eaters