All of the following are functions of the digestive system except:

A) absorption.
B) respiration
C) digestion.
D) elimination.

Digestive System

A complex system that breaks down food into absorbable units using digestive tract organs and glands, providing energy and nutrients to the body.

Absorption

The process by which substances are taken up into or across tissues, such as nutrients being absorbed by the gastrointestinal tract into the bloodstream.

Respiration

The biological process involving the exchange of gases between an organism and its environment, including inhaling oxygen and exhaling carbon dioxide.