What is the four main features of a reflex?

The four main features of a reflex are: 1) Involuntary Response: Reflexes occur automatically without conscious thought. 2) Rapid Action: They involve quick responses to stimuli, often mediated by a simple neural pathway known as a reflex arc. 3) Specificity: Each reflex is triggered by a specific stimulus, such as a tap on the knee or touching a hot surface. 4) Protective Function: Many reflexes serve to protect the body from harm, such as withdrawing a hand from a hot object.