Which statement best explains how the kidneys serve the needs of the cells? question options: they collect waste from individual cells found throughout the body and then send it to the excretory system so it can then be removed from the body. they filter waste and extra water from blood so they can create urine, which is removed from the body. they filter any carbon dioxide found in the blood and send it to the respiratory system so it can be removed from the body. they collect solid wastes from the large intestines and then prepare it so it can be removed from the body.