The correct option is B.
An alteration in an individual's gene may either be beneficial or detrimental. If the alteration in the gene sequence confers a genetic advantage on the individual then the alteration is beneficial but it the alteration confers a genetic disadvantage on the individual, then the alteration is detrimental.
        
                    
             
        
        
        
Answer:
ICF to ECF
Explanation:
This is achieved by the evacuation of potassium ions (K+ ions) and sodium ions (Na+) from the inside of the neuron cells to the outside through ion channels. This process requires energy. This eventually leaves the inside of the cell electronegative relative to the outside (usually leaving an emf of -70mV). 
 
        
             
        
        
        
Connective tissue: holds the heart in place while the body moves
muscle and nervous tissue: pump the heart
epithelial tissue: protects the heart from the damage other parts can do