The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
Answer:
When signs of spontaneous circulation are seen.
Explanation:
You should only perform CPR when someone is unconscious and not breathing or not breathing normally. If they are breathing normally and unconscious, you should still call 911 and then place them in the recovery position.
<em>Hope this helps!</em>
The answer here is B they are each made of matter. some are compounds, and some are elements they all contain Atoms this is because Silver and Oxygen are elements while Carbon Dioxide and Water are compounds. Although you do not have the choices down, I have come across this question before.
They vary but l<span>ead, carbon monoxide, and sulfur dioxide are some of the most common ones that have decreased the most </span>
