The type of glial cells are particularly at risk from the disease are the Schwann cells.  This disease is caused by a bacterium, Corynebacterium diphtheriae, and is caused when the bacteria releases a toxin, or poison, into a person's body. The Schwann cells produces insulating myelin sheath that covers the axons of many neurons. These cells may suffers immune or toxic attacks with diphtheria infection. 
        
             
        
        
        
Answer:
for 16 it is heart. 
Explanation:
for 17 it is kidney to bladder
 
        
                    
             
        
        
        
Changing from a gas to a liquid is called <span>condensation.</span>
        
             
        
        
        
In the model, a codon is identified as part of the mRNA strand. A codon is a series of three nucleotides on mRNA that codes for an amino acid.
mRNA
This is one form of RNA that serves as a template for protein synthesis. It is transcribed from DNA and then translated at ribosomes to produce a protein.