Answer:
1 = True Ribs or Vertebrosternal Ribs
2 = False Ribs or Vertebrochondral Ribs
3 = Floating Ribs
4 = Thoracic Vertebrae 1 (T1)
5 = Ribs 
6 = Coastal Cartilage
Explanation:
Thus, The Whole Structure is known as Rib Cage or Thoracic Cage
<u>-TheUnknown</u><u>S</u><u>cientist</u>
 
        
             
        
        
        
Evidence would the fossils they left in the grounds they found.
        
                    
             
        
        
        
Ossiculoplasty is the term to repair the outer ear.
        
                    
             
        
        
        
Answer:
The given blank can be filled with interferons. 
Explanation:
The signaling molecules or the proteins that get discharged by the cell infected by the virus to protect the adjacent cells by stimulating a safeguarding defense mechanism are termed as interferons.  
The mentioned proteins obstruct the proliferation of viruses and thus helps the cell in getting rid of the infection. These molecules also assist in stimulating the macrophages and the natural killer cells.  
 
        
             
        
        
        
I think bison hope this helps