If you dont take a math class or science class senior year will you still be able to become a pediatrician?

Yes you can. I would not recommend not taking a math class your senior year, but if you don't have to, then that's fine. But in college you will have to take math and you might be a little rusty when it comes to even the common problems. So yes you can not take math your senior year and still be a pediatrician. The same goes with science, usually high school arent as picky as people taking science as much as math. But yes same goes for both subjects.