Answer:
4!
Explanation:
2 + 2 = 4
if u didnt know now you know! :)
Hi !
Answer:
speeds up the heart beating : <em>adrenaline</em>
narrows arteries to increase blood pressure : <em>cortisol</em>
<em>only found in females : </em>estrogen
Answer:
Exercise increases the heart rate, heart output and it also increases the amount of blood pounded into the body at every heart beat. But in the cases of people who have adapted to exercise, it reduces their heart rate.
Explanation:
I would say C
hope this helps:))
