You are given a sentence and your task is to generate another sentence that supports the given input.

Q: The digestive system consists of the mouth, which is used only as a passage way, if you will, the esophagus, the stomach, small intestine, large intestine and the rectum.

A: The correct order of food traveling through the digestive system after it is swallowed is: esophagus, stomach, small intestine, large intestine.
****
Q: and Vertebrata, animals with backbones made up of vertebrae, with about 41,700 species.

A: Vertebrata are characterized by the presence of backbone.
****
Q: The carbon atoms in these chains and rings can then form bonds with other elements in many ways to produce various functional groups.

A:
Carbon (c) is essential to living organisms because carbon bonds in many ways with itself to form chains.
****