Respuesta :
Hey!
Have you ever seen dogs barking at a doorbell? That's the perfect example.
The stimulus in this situation is the doorbell going off. That creates an i internal reaction for the dog, which is to rub to the door and bark. This is because they fear an intruder and their job is to protect their family.
Hope this helps!
Hope it helps ~Matya
When you burn your hand, which makes the connection from your hand to your brain alerting it about its injury. The internal response would probably be skin sheeding.