What Is the Digestive System? The digestive system breaks down the food we eat into tiny parts to give us fuel and the nutrients we need to live. As food breaks down, we get amino acids from protein, ...

What Is the Digestive System? Food is our fuel, and its nutrients give our bodies' cells the energy and substances they need to work. But before food can do that, it must be digested into small pieces ...

Lift and remove muscle. Remove tissue on neck to view esophagus. Be careful not to destroy circulatory system. Digestive organs can be pulled out and re-examined next week. 4. Mudpuppy Make two ...