Answer:
Human bodies reply to stimuli for one main reason: Response. The receptors in a human body detect stimuli to pass along signals along to the brain or spinal column. Stimuli is what keeps our brains and spines coordinated telling them what is going on with our bodies. For example, when a person sneezes. What happens during this is that the receptors detect stimuli from unwanted particles in the nose. So in turn the recptors send a signal to our brain saying something in here that should not be and the brain signal to muscles in the nose to eject, which is the sneeze. That's why people sneeze so much when sick to get unwanted germs out. So in conclusion stimuli is very important to our bodies response system.
Step-by-step explanation:
Hope this helps!