Which of the following components is NOT part of the process of digestion?

The process of digestion consists of several key components that work in harmony to break down food, absorb nutrients, and eliminate waste. Ingestion refers to the intake of food, where the digestive system begins its work. Digestion itself involves both mechanical and chemical processes that break down food into smaller, absorbable components. Egestion is the final stage of digestion, where waste products are expelled from the body after the nutrients have been absorbed.

Conduction, however, does not relate to digestion. It generally refers to the transfer of heat or the movement of electrical signals in a variety of contexts, such as physics and biology, but it does not pertain to the processes of breaking down food or waste removal that define the digestive system. This distinction clearly identifies conduction as the outlier among the listed components.