Good conductors of heat- aluminium, Iron, Lithium, Beryllium.
poor conductors- Mercury, Hydrogen, titanium, Chromium
Myocardial infarction, the medical term for heart attack, literally means "heart tissue damage or death.". Heart attacks most commonly occur when one or more of the coronary arteries — a network of blood vessels that supply blood to the heart — become blocked. Heart muscle becomes starved for oxygen and nutrients.
Future differences I think
B layers of substances that help the tissue move