Question

Based on what you have learned about the respiratory and the circulatory systems, what is the most likely reason that your heartbeat increases during exercise?

it helps you keep your balance

it increases the flow of oxygen

it slows down the flow of blood

it helps your body conserve energy

Which of the following best defines pulse rate?

the number of heart beats per second

the number of heart beats during one day

the number of heart beats in one minute

the number of heart beats in one hour of exercise

Answer 1

@JoannaBlackwelder

Answer 2

What do you think?

Answer 3

Honestly either b or c

Answer 4

and for the 2nd question I have no idea

Answer 5

But my best guess would be bpm or bps

Answer 6

bc it has to pump more blood to the places that you are using to exciseing hope that helps

Answer 7

so i would say increases the flow of oxygen

Answer 8

thanks

Answer 9

yw

Answer 10

and the second one i think would be a

Answer 11

thanks :)

Answer 12

np :)

Answer 13

thx for the medal :)

Answer 14

no problemo