The function of a ureter is................. of urine.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Excretory System**: The human excretory system consists of several organs that work together to produce and eliminate urine. The main organs involved are the kidneys, ureters, urinary bladder, and urethra.

2. **Identifying the Role of the Ureter**: The ureter is a tube-like structure that connects the kidneys to the urinary bladder. Each kidney has a ureter that transports urine produced in the kidney to the bladder.

3. **Function of the Ureter**: The primary function of the ureter is to carry urine. It acts as a passageway for urine to travel from the kidneys, where it is formed, to the urinary bladder, where it is stored until it is excreted from the body.

...