question: What do choanocytes have to trap the particles?
choices.text: several genes a large mouth a hosta a set of teeth antibodies melanin content tiny hairs Protein
choices.label: A B C D E F G H
fact2: Collar cells or choanocytes are the work horses.
combinedfact: Choanocytes have tiny hairs that trap the particles.
formatted_question: What do choanocytes have to trap the particles? (A) several genes (B) a large mouth (C) a hosta (D) a set of teeth (E) antibodies (F) melanin content (G) tiny hairs (H) Protein