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1. During a heart attack, some of the cells in the thick layer of muscle in the heart walls die. This layer of muscle is called the (1 point) • Do not choose. • pericardium. • connective tissue layer. • myocardium.



Answer :

rubaiya2001
myocardium is the answer
Myocardium, that's because myocardium simply means 'muscular tissue of the heart'. It is not pericardium or connective tissue as these are only small, specific areas of the heart and a heart attack can cause cells to die anywhere in the heart.

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