I'd personally say B because a warmup will reduce injury, soreness, and get you ready. Then you have your exercise. Then the cooldown helps <span>bring the heartrate down to near-normal and to get the blood circulating freely back to the heart. Stopping abruptly could result in fainting or place undue stress on the heart.</span>
To hear heart rate............
Homogeneous is when you cannot separate what you mixed, like when you mix milk and coffee, once mixed it can't be separated so Heterogeneous should be your answer
E
Yes because a open fracture is when the bone comes out of the skin. So to be a closed fracture it has to be inside the skin.
