Here's how each organ contributes to waste removal:

* Kidneys: Filter waste products from the blood and produce urine.

* Liver: Processes toxins, breaks down old red blood cells, and produces bile for digestion.

* Skin: Releases sweat, which helps eliminate excess heat, salt, and water.

* Intestines: Eliminate undigested food and waste products.

* Lungs: Exhale carbon dioxide, a waste product of cellular respiration.

While the excretory system is primarily responsible for removing waste, it's important to note that other systems also play a role. For example, the circulatory system transports waste products to the excretory organs, and the lymphatic system helps filter waste and return fluid to the bloodstream.