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.

sympathetic nervous system

Explanation: The hormones trigger sweating and rapid heart beats.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

explanation:

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