Protein, the building blocks of proteins are amino acids, different sequences and combinations of these amino acids result in huge numbers of proteins which have a variety of functions.
        
             
        
        
        
Answer:
The answer is oil .
Explanation:
<u>Oil</u> is not a natural Earth cycle.
(Correct me if I am wrong)
 
        
             
        
        
        
Answer:
Animal by-products.
The USDA (United States Department of Agriculture) defines an animal product as anything made from an animal, excluding muscle meat.
 
        
                    
             
        
        
        
As you grow father away from the mid ocean ridge the rock is older as you get closer the rock is younger
        
             
        
        
        
Answer:
Murine fibroblasts 
Explanation:
Fibroblasts are the most common cellular type in the connective tissue of mammals and immortal murine fibroblasts are often used in molecular biology to study different characteristics such as, for example, to understand the tissue repair processes