Answer:
I just did this one too!
Explanation:
I did this questions and I was mad because nobody would help and I only got a 70%.
Pacer for sure you just got to trust me on this one
The answer is EKG or ECG which stand for electrocardiogram.
It’s important because your heart must beat faster during exercising because the increase of the heart rate also will need a increase of cardiac output to deliver the necessary blood flow to the muscles.
Hope this help
