Final answer:
The body rids itself of toxins through elimination, a process that primarily occurs in the liver, converting toxins into less harmful substances for excretion and maintaining homeostasis.
Step-by-step explanation:
The process by which the body rids itself of a toxin is elimination. This detoxification mechanism predominantly involves the liver where the toxic substances are converted into less harmful products before being excreted from the body. The liver performs various functions through two phases: Phase-I includes oxidation, reduction, and hydrolysis, while Phase-II includes conjugation, which prepares these substances for excretion.
Ingestion is quite different, being the process of taking in food, while absorption refers to the uptake of nutrients by the body's cells. Excretion is a broader term that encompasses the elimination of wastes and is an essential part of maintaining homeostasis. Important organs of excretion include the kidneys, large intestine, liver, skin, and lungs.