ammytaylabauemile ammytaylabauemile 16-04-2017 History contestada [i]Which of these is a common characteristic of cnidarians?[/i] [i]A. They have four legs.[/i] [i]B. They have tentacles with stinging cells.[/i] [i]C. They live only in the oceans.[/i] [i]D. They live only at the surface of the water. [/i]