The six parts of the digestive tract is called the:
a: [digestive system]
b. [esophagus]
c. [alimentary canal]
d. [circulation system]

C. Alimentary canal
The gastrointestinal tract, also called the digestive tract, or alimentary canal, is the organ system in multicellular animals that consume food, digest it to extract energy and nutrients and expel the remaining waste.

D. Circulation system I hope this helped