| A | B |
| mouth | used for food intake |
| stomach | contains a strong acid for digestion |
| esophagus | tube between mouth and stomach |
| small intestine | most of the food absorption |
| large intestine | absorbs mostly water |
| rectum | last stop before elimination |
| liver | cleans blood from toxins |
| pancreas | helps break down protein |
| saliva | fluid for digestion in the mouth |
| teeth | used for mechanical breakdown |
| HCL | strong acid in the stomach |
| appendix | small extension of the intestine |
| mechanical breakdown | chewing and churning |
| chemical breakdown | acid breakdown |
| food | fuel for the body |