Answer:
<em>Cardiac muscles are found only in the heart. They regulate the contraction and relaxation of the heart, which helps in pumping blood through the circulatory system. The movements of the cardiac muscles are involuntary. They are important in sustaining life.</em>
First: Scarring
Scarring has nothing to do with defense
Second: False
Its B and T cells (lymphocytes)
Third: B cells
B cells produce antibodies
Drinking nonstop pretty much, its no different than binge eating or watching tv it means they just keep eating or drinking or what ever the circumstance may be
i hope this helps