Answer:
The features that are found in both cartilage and bone are,  living cells embedded in a matrix
Explanation:
 
        
                    
             
        
        
        
Answer:
the ears
the mouth
the top and back of the head
Explanation:
just did the assignment 
 
        
                    
             
        
        
        
Sink to the bottom because it is more dense than the water.
        
             
        
        
        
  Hydrogen ion, or H-, creates water when combined with a hydroxide ion, OH+.
 
    The 'formula' for water is H20, two hydrogens and an oxygen. 
I hope that I helped but if this still makes no sense, or if I haven't explained it as well, then please don't hesitate to ask further questions. Thank you.
 
        
             
        
        
        
In both cases, viral DNA is integrated into the host DNA for a period of time