What does blood help in the removal of besides carbon dioxide?

Blood plays a critical role in the removal of various waste products from the body. It acts as a transport medium, collecting waste materials produced by cellular metabolism, including urea, creatinine, and other byproducts that need to be eliminated for maintaining homeostasis. Once the blood carries these waste products to the kidneys or other excretory organs, they can be filtered out and disposed of through urine or other means.

The other options encompass important functions of blood but do not focus specifically on waste removal. For instance, while blood does transport water and salts, this process is more related to maintaining fluid balance and electrolytic equilibrium rather than waste elimination. Similarly, nutrients and glucose are essential components carried by blood to supply energy to cells but are not considered waste. Hormones and vitamins are also transported by blood, playing key roles in various physiological processes, but again, they are not waste materials. Thus, the primary function here is the removal of waste products through the circulatory system, making that the correct answer in this context.