Cold and warmth effects Both of them
        
                    
             
        
        
        
Answer:
both tolerance and withdrawal.
Explanation:
 
        
                    
             
        
        
        
<span>Answer: Opening of Na+ and K+
Explanation:
Acetycholine binding opens Na+ and K+ ion channels in the receptors that allow simultaneous passage of Naâş into the muscle fiber and Kâş out of the muscle fiber. More Naâş ions enter than Kâş ions exit, which produces a local change in the membrane potential called the end plate potential.
Binding of acetycholine to receptor proteins opens Na+ and K+ channels resulting in jump in resting membrane potential(RMP) from -90mV to +75mV forming an end-plate potential (EPP).</span>
        
             
        
        
        
A.  Kinetic energy is the energy of motion.  B,C,D all describe situations where there is not movement.