Answer:
protein
Explanation:
Proteins are constructed from an organism's DNA, which the DNA makes the RNA, which makes proteins.  These proteins conduct the basic functions for the organism.
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1 out of 5 is 1/5. 
Divide that and you get .20, which is 20%, so that is your answer, 20% fat.
        
             
        
        
        
Answer:
Bone
Explanation:
Even though they are made of tissue they are not primary.
 
        
             
        
        
        
Nitrogen is special because it is necessary for growth and reproduction. It's needed for plants and animals to survive. The main function for the atmosphere i believe is to give oxygen and nitrogen.
        
                    
             
        
        
        
Answer:
the answer is D
Explanation:
the molecules of chlorophyll absorb the sun's energy in form if light