You are sitting in a public place next to a new acquaintance to whom you are attracted. you feel this person’s hand touch yours. your heart beats faster, and you feel "butterflies" in your stomach. your increased heart rate and stomach contractions were initiated by what division of the nervous system?

Autonomic nervous system

Explanation:

The Autonomic nervous system has to do with the "fight or flight" and "rest and digest" branches. It has to do with increased heart rate, butterflies in the stomach, etc.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.