Given a scientific passage and an answer, generate a question for the given answer.
Q: Passage: In addition to these organs, the male reproductive system consists of a series of ducts and glands. Ducts include the vas deferens and ejaculatory ducts. They transport sperm from the epididymes to the urethra in the penis. Glands include the seminal vesicles and prostate gland. They secrete substances that become part of semen. Answer: male reproductive system
A:
The vas deferens and ejaculatory ducts transport sperm from the epididymes to the urethra in what system?