Answer:
The correct sequence of events are: Ingestion - Digestion - absorption - assimilation
Explanation:
Ingestion: It is the process of taking either solid or liquid food through mouth or oral cavity.
Digestion: It includes the digestive system which consists of alimentary canal and the associated glands. These glands help in the digestion of food. Alimentary canal starts with mouth and opens outside through anus. Complete digestion of food occurs in small intestine.
Absorption: Once the food is completely digested in small intestine it must be absorbed across the intestinal wall into the blood stream or lymph.
Assimilation: The absorbed substance then finally reaches the tissues which utilizes them for activity.
