They are all fused together I hope I helped you
Answer: Refractory period of the cardiac action potential
Explanation:
Unlike the skeletal muscle which can be reactivated before it reaches a contraction, cardiac muscle must wait before it is almost completely relaxed to be activated again (because of its long refractory period), so one cannot make an increase in strength of contraction with a high frequency of stimulations.
Answer: If your a heavy drinker, your body may rebel at first if you cut off all alchol. You could break out in cold sweats or have a racing pulse
Explanation: Hope this helps