Final answer:
The male urethra serves dual purposes: eliminating urine and delivering semen, thanks to its unique anatomical structure which differs between men and women.
Step-by-step explanation:
The male urethra serves the dual purpose of urine elimination and semen delivery. It is a unique urological organ that shows a significant anatomic difference between males and females. In males, the urethra transports urine from the bladder to the outside of the body and also serves as a conduit for ejaculating semen during reproduction. This duality is possible because the urethra interacts with several reproductive glands such as the prostate gland, Cowper's gland, and seminal vesicles, facilitating the passage of sperm and seminal fluid.