You are walking after dark. a sudden noise frightens you. your heart pounds, your pulse races, and your breathing rate increases. these responses

sympathetic nervous system

Explanation:

The sympathetic nervous system controls essential parts of the body such as heart rate, body temperature, breathing, sweating, digestion, etc. It directs the rapid involuntary reaction of the body to dangerous or stressful situations. This system allows humans to make quick internal adjustments and to respond without thinking about it. Therefore whenever a body comes across a physical stress or challenging situations this system prepares the body either to flee or fight.

b. the american revolution

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.