Answer:
C, a long absolute refractory period.
Explanation:
Tetanus is not possible in cardiac muscle tissue because cardiac cells have longer action potentials and a very long refractory period compared to other cells. This helps prevent the heart from cramping and seizing up.
 
        
             
        
        
        
The answer is concentration gradient. Have a good day.
 
        
             
        
        
        
Leukemia can be treated using human stem cells to attack and destroy cancer cells.
 
        
                    
             
        
        
        
No they cannot. Lol lol lol
        
                    
             
        
        
        
In DNA, there is a code for the sequence
of three bases for the placement of certain amino acid in a protein chain.<span> The amino acid chain that can be produced by
the DNA base sequence of C-A-A-G-T-T-A-A-A-T-T-A-T-T-G-T-G-A would be based on
the DNA code CAA is valine, GTT is glutamine, AAA is phenylalanine, TTA is asparagine,
TTG is asparagine and TGA is threonine. </span>