The best answer would be enzymes since they are protein molecules and help build it. Enzymes also take part in reaction.
        
             
        
        
        
Answer:
for 7
Explanation:
7.If the leptons of mosses were found to contain a protein whose gene had the same nucleotide sequence as the gene that codes for P-protein, would that be significant evidence for either the homo-logy or analogy of leptons and phloem?
 
        
             
        
        
        
If a bacteria cannot ferment glucose, then we do not test its ability to ferment other carbohydrates because the glucose is monosaccharides, the bacteria required enzymes that used to ferment glucose.
Bacteria cannot ferment carbohydrates because carbohydrates may include non-reducing sugar like sucrose and lactose, which is disaccharide, that must be cleaved into monosaccharides. Not all, bacteria can do this to may or may not ferment sucrose.
Many microorganism can grow in the base broth without the carbohydrates, but if they can ferment a sugar that is available. It is possible that one bacteria metabolize some sugar but can't work on other.
To learn more about non-reducing sugar here
brainly.com/question/13154500
#SPJ4
 
        
             
        
        
        
When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the C. experimental. Experimental variables are the things you are studying in the experiment and it is the only variable you can change.
        
             
        
        
        
Answer:
you shouldn't use this website for quizzes.
Explanation:
sorry...