question: What do hagfish secrete?
choices.text: sweat RNA water air Protein mucus saliva antigen
choices.label: A B C D E F G H
fact2: Hagfishes are entirely marine, very slimy, and feed on carrion and injured fishes.
combinedfact: Hagfish secrete large amounts of mucus.
formatted_question: What do hagfish secrete? (A) sweat (B) RNA (C) water (D) air (E) Protein (F) mucus (G) saliva (H) antigen