Answer:
During an action potential, sodium channels first activate, driving the upstroke, and then inactivate, facilitating repolarization to the resting potential. The channel's a gate (activation gate) is closed at rest and activates in several steps to an open state after depolarization.
Explanation:
 
        
             
        
        
        
The answer is "True".
You see the position of your seat has actually nothing to do with the effectiveness of your head rest as you position the seat, the head rest will likewise move, influencing a person to change his or her level of comfort as he or she sits or rests.
  
        
                    
             
        
        
        
<u>Answer:
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Pollack and Pickett's found from their experiment on understanding speech that only 50% of the words spoken by their own voices could be identified by the participants.
<u>Explanation:
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- The experiment carried out by Pollack and Pickett was intended at determining whether or not people recognize and understand the words and syllables spoken by their own selves when the words are presented to them separately one word at a time.
- The experiment was inspired by the fact that humans often perceive their own voice in a different way than how it actually is.