I want to know the answer to the following question:
Reflexes only require one of what two structures in a body?
All the background I'm provided with is that "Some basic types of responsiveness such as reflexes can be mediated by the spinal cord or peripheral ganglia, but sophisticated purposeful control of behavior based on complex sensory input requires the information integrating capabilities of a centralized brain.". Is that enough to answer the question?
Answer: yes