After the food has been chewed and lubricated, it is pushed by the tongue into the

After food has been chewed and lubricated, the tongue the pushes it into the pharynx, also known as the throat. From there it travels into the esophagus. Once in the esophagus, the muscles work to push it down in the stomach. The mouth is the first stop in the complete digestion process.

Ithink the dna sequences may vary but the amino acid sequences are identical.