question: what has tiny hairs that trap particles?
choices.text: sponges molecules oaks lizards protozoa snakes cilia clouds
choices.label: A B C D E F G H
fact2: Collar cells are the work horses of the sponge.
combinedfact: sponges have tiny hairs that trap particles
formatted_question: what has tiny hairs that trap particles? (A) sponges (B) molecules (C) oaks (D) lizards (E) protozoa (F) snakes (G) cilia (H) clouds