Imagine you are late to class and you have to run down the halls. your heart rate increases to 140 beats per minute. show how this increase will affect your cardiac output. explain why your body needs more blood pumped per minute.

Well because your heart beat is increasing very rapidly your hearts output will speed up or increase. This happens because the heart is beating faster forcing it to pump blood threw you at a more efficient or higher rate. This increased flow of blood is very important for your lungs because with an increased heart rate comes increased breaths meaning your lungs are relying on that blood flow to be able to release oxygen into your fast flowing blood stream. Which that oxygenated blood will then fuel the rest of your body. Sorry if this is kinda a mess but pretty much the main idea is your body needs an more blood flow per minute because it allows the rest of your body to function as fast and efficiently as your heart.

C= $20.45, you do how many songs multiply that by each song cost and add $9.95

I’m going to guess these are the choices: a) recreational skiing developed in the mid-19th century b) it was originally invented as a way of getting from place to place in snowy regions c) downhill skiing is currently the only common form of the sport d) it mostly evolved from snowshoeing- if that’s the cases then the answer would be c) downhill skiing is currently the only common form of the sport