It is 2:00 A.M. and Michelle is home by herself. Her dog begins to bark loudly and the hair on the back of her dog's neck is standing up. Michelle then hears banging on her front door. Michelle starts to sweat and her heart begins to beat faster and faster. Michelle's _____ nervous system has kicked in.

Respuesta :

Answer: sympathetic nervous system

Explanation: The hormones trigger sweating and rapid heart beats.