question: What causes an elbow to straighten?
choices.text: rabbits inheritance patterns skateboard sensory nerve cells Muscles contracting pain gene mutations Stomata closing
choices.label: A B C D E F G H
formatted_question: What causes an elbow to straighten? (A) rabbits (B) inheritance patterns (C) skateboard (D) sensory nerve cells (E) Muscles contracting (F) pain (G) gene mutations (H) Stomata closing