After discovering that the shadows outside his window were only the trees in the yard, ralph's blood pressure decreased and his heartbeat slowed. these physical reactions were most directly regulated by his sympathetic nervous system. somatic nervous system. parasympathetic nervous system. sensory nervous system.

The sympathetic nervous system is what controls blood pressure and heart rate. It also stimulates and controls your "fight or flight" response.

for me i have felt invisible when i was clearly struggling,or,i made a great achievement ,and,nobody took to notice me either because they just didn't see it,or,people just turned their back on me.i can see a person being invisible by choice,or,without choice like i did.the people who are invisible by choice don't try to talk to people,don't try to make friends,and,keep to themselves.i haven't been one of those people so i couldn't give you a reason.

hope this and can i get bainliest my dude : d

c is the answer to this question. don't bunt to ruin a pitchers no hit game. it's .