Proteins are made of amino acids!
Hope this helps!
-Steel jelly.
 
        
             
        
        
        
<span>All extremities of the human body, including fingers, hands, arms, toes, feet, legs, ears, and the nose, could be examined by a nurse to confirm a diagnosis of frostbite. As frostbite is a condition of the skin, any exposed area should suffice to confirm the diagnosis.</span>
        
             
        
        
        
Answer:
C. conduction
Explanation:
Conduction is the transfer of heat between objects in contact with each other as a result of molecular action. Conduction occurs within and between all states of matter.
 
        
                    
             
        
        
        
Foreign invaders have proteins called antigen, which antibodies lock onto to neutralize. The foreign proteins are different from proteins in our own body, so the immune system can recognize them and finally eliminate them.
        
                    
             
        
        
        
Answer:
HeLa cells have been used in research to study 
Explanation:
the nature and progression of cancer