In a resting state, sodium (Na ) is at a higher concentration outside the cell, and potassium (K ) is more concentrated inside the cell. During an action potential, the sodium levels <u>increase </u>inside the cell. 
During an action potential, the potassium level inside the cell decreases, and the sodium level inside the cell increases. That is to say, there is an outflow of potassium and an inflow of sodium ions.
Action potential usually occurs when an electrical signal disrupts the balance of Na+ and K+ within a cell membrane, briefly depolarizing the concentrations of each.
Learn more about potassium here: brainly.com/question/21439467
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Answer:
im pre sure its genetic mutation
Explanation:
coz it changes the genes in the organism
m
 
        
                    
             
        
        
        
Answer:
c.
Explanation:
the chromosomes are duplicated.
 
        
             
        
        
        
 i think that the body does its just that the antibodies arent strong enough to combat the virus completely
        
             
        
        
        
Answer:
Because of how genes change and how quickly they change, evolution is complicated. At the start of evolution, there shouldn't be a straight tree branch—it should be a twisted mess.
