question: What is used to navigate oceans?
choices.text: fish fluid connective tissue feedback mechanisms vertebrae or backbone Microscopic vessels. barrels A backbone direction in degrees
choices.label: A B C D E F G H
fact2: Direction is in degrees from north as measured by a compass.
combinedfact: direction in degrees is used to navigate oceans
formatted_question: What is used to navigate oceans? (A) fish (B) fluid connective tissue (C) feedback mechanisms (D) vertebrae or backbone (E) Microscopic vessels. (F) barrels (G) A backbone (H) direction in degrees