Answer;
Ingestion of food.
Secretion of fluids and digestive enzymes.
Mixing and movement of food and wastes through the body.
Digestion of food into smaller pieces.
Absorption of nutrients.
Excretion of wastes.
Explanation;
The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus. It includes the mouth, pharynx, esophagus, stomach, small intestine, and large intestine.
The treatment of food in the digestive system involves; ingestion, propulsion, secretion, mechanical digestion, chemical digestion, absorption and defecation.
The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body.