Jeb Bush, the self-styled straight-talking education governor, is having trouble speaking clearly about one of the hottest education topics these days: evolution. Bush isn't sure if the religiously inspired ''intelligent design'' concept belongs in public school science classrooms.''I don't . . . I don't know,'' he said Thursday. ``It's not part of our standards. Nor is creationism. Nor is Darwinism or evolution either.''He's wrong about that: Evolution is required. The Sunshine State Standards want high school students to understand ``how genetic variation of offspring contributes to population control in an environment and that natural selection ensures that those who are...