Eddie’s assignment is to prepare a dichotomous key for several objects. His first task was to arrange the objects. The objects are a lightning bug, a butterfly, a ladybug, an ant and a canary. What should each question in the dichotomous key accomplish?

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.