If you think fats and oils are at the top of the food chain, you deserve at least partial credit for a correct answer. But bacteria breaks down oil in this rock-paper-scissors game we call Life.

For the first half of geological time, our ancestors were bacteria. Most creatures still are bacteria, and each one of our trillions of cells is a colony of bacteria.
Quotation from Richard Dawkins

Salad bars are like a restaurant’s lungs. They soak up the impurities and bacteria in the environment, leaving you with much cleaner air to enjoy.
Quotation from Doug Coupland

If you don’t change, then what’s the point of anything happening to you?
Another quotation from Doug Coupland