Well, just about everything. Not counting bacteria, some worms, etc.
Do you still think the next Lysenko isn't one of these? And before you say "It can't happen here", I think you should read (or reread, whatever the case) It Can't Happen Here and remember (learn) where the Big Sellout came from. After all, Lysenko was a nothing agronomist in Azerbaijan when he got his start.
Is Kansas the Azerbaijan of the 21st century? These are the things bad dreams are made of.