17.The liver acts to keep blood glucose at a relatively constant level. It takes up glucose from the blood when levels are too high, and adds glucose to the blood when levels are too low. Are these actions of the liver an example of homeostasis? Responses A. Yes, because homeostasis is the interaction between two separate organs or tissues, such as the liver and blood. B. No, because homeostasis involves only tissues and organs from the same organ system. C. No, because homeostasis involves only positive feedback, not feedback inhibition. D. Yes, because homeostasis involves the maintenance of constant internal conditions.