Which of the following statements about blood is INCORRECT?

The statement regarding blood taking urea from the kidneys to the liver is incorrect because, in the body's physiological processes, urea is actually produced in the liver as a waste product of protein metabolism. Once formed, urea is transported through the bloodstream to the kidneys, where it is filtered out and then excreted in urine. The correct pathway is that blood carries waste products, including urea, away from the organs that produce them (the liver) to the organs that eliminate them (the kidneys).

In contrast, the other statements accurately reflect the functions of blood. Blood transports nutrients absorbed from the digestive process to cells for energy and metabolism. It carries oxygen from the lungs to tissues throughout the body, which is essential for cellular respiration. Additionally, blood plays a significant role in regulating body temperature by redistributing heat through the circulation. These vital functions underscore the importance of blood in maintaining homeostasis and supporting life processes.