Final answer:
The unary system is commonly known as the excretory system, which comprises the urinary system and other organs that help eliminate waste.
Step-by-step explanation:
The unary system is also known as the excretory system. It is made up of several organs, including the urinary system, which consists of the kidneys, ureters, bladder, and urethra. The urinary system plays a crucial role in the excretory system by producing, storing, and eliminating urine. This system helps in the regulation of electrolytes, maintaining acid-base balance, and regulating blood pressure. Other parts of the excretory system include the skin, lungs, and large intestine, which help in the elimination of waste from the body. The excretory system eliminates waste products from the body and helps maintain proper balance of fluids and electrolytes.