There's an interdependence between flowers and bees. Where there are no flowers there are no bees, and where there are no bees, there are no flowers. They are really one organism. And so in the same way, everything in nature depends on everything else.
Science is a way to call the bluff of those who only pretend to knowledge. It is a bulwark against mysticism, against superstition, against religion misapplied to where it has no business being.