Which system is responsible for eliminating waste products from the body?

The excretory system is the body's primary system responsible for eliminating waste products. This system plays a crucial role in maintaining homeostasis by filtering blood and removing waste materials produced by metabolism. Key organs involved in this process include the kidneys, which filter out toxins and excess substances to form urine, as well as the bladder, where urine is stored before being expelled from the body. The excretory system ensures that harmful substances do not accumulate, which is vital for overall health and functioning.

In contrast, the circulatory system is primarily responsible for moving blood and nutrients throughout the body rather than waste elimination. The nervous system oversees and coordinates bodily functions but does not directly handle waste removal. The endocrine system regulates hormones and various bodily processes but does not eliminate waste products. Thus, the excretory system is uniquely specialized for waste elimination, making it the correct answer.