Checks and balances keep one branch from overpowering the next.
ex: Executive Branch = Legislative, Legislative = Judicial, Executive = Judicial etc.
They affect it by off roading with trucks and more and that messes up the desert floor for animals to camoflauge like snakes.
Theory is the correct answer. A scientific theory explains something about the natural world and can be tested via the scientific method to provide a reliable account of why something happens. If it has been suitably tested, it can be provisionally accepted by the scientific community.
What is it for tho. ?