Concept:The female reproductive system includes organs directly involved in reproduction, such as the uterus and cervix.Explanation:• The uterus is a female reproductive organ where a baby develops.• The cervix is the lower part of the uterus, also part of the female reproductive system.• The urethra and ureter are parts of the urinary system, not the female reproductive system.• Therefore, the pair that forms part of the female reproductive system is cervix and uterus.Answer:B. Cervix and uterus