Using the drawing tools provided by your word-processing program, draw a diagram that traces the pathway and physiological processes of a bite of food through the digestive system. Annotate each step in the digestive process with a brief paragraph describing what happens in the step.

Be sure to include the following topics:

• The organs of the digestive system
• The actions of the digestive system
• Propulsion
• Absorption
• Chemical digestion
• Mechanical digestion