The kidney is an organ that collects wastes and excess water from the blood and sends them to the bladder where they are stored
before being removed from the body. which two systems work together to perform this function? 1) immune and respiratory 2) circulatory and excretory 3) skeletal and nervous 4) digestive and circulatory
4) digestive and circulatory, because the bladder is part of the digestive system. The circulatory system carries blood around the body using blood vessels.
