Which two ways does the reproductive system appear different than other major body systems?

The reproductive system is unique in that it is primarily focused on sexual reproduction and the continuation of genetic material, whereas other systems, like the circulatory or respiratory, are essential for sustaining life and metabolic processes. Additionally, the reproductive system has distinct structures and functions that are often sexually dimorphic, meaning there are significant differences between male and female anatomy and physiology. Unlike other systems that are continuously active, reproductive functions can be cyclical, such as the menstrual cycle in females.