What do the skin and urinary system have in common? O Both remove filtered wastes and reabsorb blood.
Both remove undigested food from the body.
O Both remove urine from the body.
Both remove urea from the body.

(Both remove urea from the body) is the answer.

Because for the urinary system, it removes urea and waste through the body through urine. For the skin, it removes urea through sweat. Both are secretions that help rid the body of waste.

Explanation:
Sweat glands in the skin discharge a fluid waste called sweat or exudation; however, its primary functions are heat control and pheromone release. The purpose of the urinary system is to discharge waste from the body, control blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH.both eliminate excess waste from the body.