question: Ancestors of hagfish are thought to have had the earliest what?
choices.text: Growth pigment 86400 Haggard skin marine Bones Early Morning Fish Smell
choices.label: A B C D E F G H
fact2: Bone is found only in vertebrates .
combinedfact: Ancestors of hagfish are thought to have the earliest bones.
formatted_question: Ancestors of hagfish are thought to have had the earliest what? (A) Growth (B) pigment (C) 86400 (D) Haggard skin (E) marine (F) Bones (G) Early Morning (H) Fish Smell