Answer:
Neuron
Explanation:
This is the applicable unit calculation for actions in which are taken within the brain and spine. Neurons allow the transfer of information, allowing us to move our body in a desired form
 
        
                    
             
        
        
        
The best response is this: USE A MOISTURIZER ON THE SKIN DAILY TO HELP REDUCE ITCHING. 
Using a moisturizer on the skin is an effective mean of reliving dryness and in extension reducing itchiness. The moisturizer will keep the skin moist and thus reduce pruritus.
        
             
        
        
        
Answer:
they mutate and become immune to modern medicine
Explanation: