| A | B |
| enzyme | a chemical used to breakdown food |
| stomach | apoouchlike enlargement of the digestive system |
| mechanical digestion | to break food into smaller pieces |
| chemcial digestion | to breakdown food at the molecular level using chemicals |
| villus | a finger-like projection that increases the surface area of the small intestines and absorbs digested food |
| mouth | the entry point for food into the digestive system |
| teeth | mechanically breakdown food in the mouth |
| bile | causes mechanical digestion of fats |