What is the colorless liquid that moves toxins through lymph glands and vessels?

Lymph fluid is the correct answer because it plays a crucial role in the body's immune system and fluid balance. It is a colorless liquid that circulates in the lymphatic system, which includes lymph glands and vessels. This fluid is responsible for transporting white blood cells and other immune cells that help fight infections and remove toxins from the tissues. Lymph fluid also collects and carries proteins, waste products, and excess fluids from the body's cells back into the bloodstream, thus supporting overall health.

Blood and plasma, while essential for transporting nutrients, gases, and hormones, are part of the circulatory system rather than the lymphatic system. Serum is the liquid part of blood that remains after coagulation; it lacks cells and clotting factors but does not serve the same primary functions as lymph fluid in detoxification and immune response. Therefore, lymph fluid is specifically designed to move toxins through the lymphatic system, making it the best choice for this question.