Which combining form denotes producing or pertaining to low temperatures?

• A. super/o
• B. dist/o
• C. cerebell/o
• D. cry/o

Answer: (D)

Cry/o- denotes cold or low temperature. It appears in terms describing very cold conditions or processes, such as cryogenic, which means producing or pertaining to very low temperatures. That makes cry/o- the right fit for the idea of cold-related production or states. The other forms point to different ideas: super/o means above or excessive, dist/o means apart or distant, and cerebell/o refers to the cerebellum, so they don’t convey temperature.