Your heart rate is increased during physical activity to increase cardiac output and deliver the blood flow needed to the muscles to carry out those activities. Your heart itself is a muscle, and also gets a workout during exercise. The job of the heart is to get more blood to the body's muscles when they work hard. Hope this helped.
Answer:
the stairs you can stretch ur back in many ways
I think you're missing the multiple choices, but I believe the answer is 'The abuse will happen again regardless of how sorry the abuser seems to feel.'
It can hurt you life style by getting whacked in the face when someone turns it XD
The answer is A, Mesentery of the small intestine
