Myocardium
<span>The heart has
four chambers, four valves. It is composed of cardiac muscles which all
in all pumps blood throughout the human body through the blood vessels.
When something gets injured around the heart, well it will
automatically, in high possibility stop functioning. Take not of the
valves and the most important is the sinoatrial node which is the pace
maker of the heart. It is what triggers the heart to pump itself and the
valves then function and the blood travels and then gets cleansed out
of carbon dioxide in the alveoli.<span> </span></span>
They show evidence of other life beyond us, when we see fossils they give is info that can determine other scientific data that is important for human life
The answer ==is insertion and error occurs during the process motosed
The center of an atom is a nucleas. you can find this answer in most textbooks on science