Question

what function does the liver serve within the excretory system?
remove oxygen waste
remove carbon dioxide waste
absorb nutrients
detoxify harmful substances

Explanation:

The liver plays a crucial role in the excretory system by detoxifying harmful substances such as drugs, alcohol, and metabolic waste products. Removing oxygen waste and carbon - dioxide waste are functions mainly associated with the respiratory system, and nutrient absorption is a function of the digestive system.

Answer:

Detoxify harmful substances