## Synthetic Biology
Some advanced synthetic humans and Boomers use biological or bio-integrated systems that differ substantially from ordinary industrial Boomers.
## 33-S Sexaroids
The 33-S Sexaroids associated with Genaros, including Sylvie and Anri, are central examples of synthetic beings whose personhood and survival needs cannot be reduced to ordinary machine maintenance.
## Artificial Blood
Artificial blood is important to the Moonlight Rambler story and the survival of the escaped 33-S units.
## Synthetic Circulatory Fluid
Other synthetic models may use hazardous circulatory or maintenance fluids. Exact hazards and mechanics belong to the specific entity, quest or environmental record.
## Medical and Technical Knowledge
Medicine, engineering and diagnostics may reveal different aspects of a synthetic body. Ordinary visual observation does not automatically reveal every synthetic identity or internal system.
## Individual Differences
Do not assume every Boomer or synthetic human has the anatomy, fluids, maintenance requirements or vulnerabilities of another model.