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?

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.