What process is referred to as egestion?

Egestion refers specifically to the process by which waste products are removed from the body. This typically involves the elimination of indigestible materials or substances that are no longer needed after the digestive process has occurred. In biological contexts, egestion is essential for maintaining homeostasis and preventing the buildup of harmful substances within the body.

The other options describe different biological processes: removal of carbon dioxide pertains to respiration, taking food into the body refers to ingestion, and absorption of nutrients involves the uptake of digested food components. Each of these processes plays a crucial role in the overall function of organisms, but they do not relate to the expulsion of waste materials, which is the primary focus of egestion.