The best answer would be enzymes since they are protein molecules and help build it. Enzymes also take part in reaction.
        
             
        
        
        
Answer:
They share common ancestors 
Explanation:
DNA remain conserve for long time and genetic code dna us major source to know that if irganistims share common ancestors
 
        
             
        
        
        
The answer is camouflage<span> it means to disguise the presence of (a person, animal, or object)</span>
        
             
        
        
        
Answer:
The color of the birdfeeders
Explanation:
Independent variable is the variable in the experiment that is changed, so the only thing changed in this experiment is the colors of the bird feeders