Answer:
1. Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. For example, sickle cell anemia is caused by a substitution in the beta-hemoglobin gene, which alters a single amino acid in the protein produced.
2. A - Mutations are sometimes helpful, sometimes harmful, and sometimes neutral
Step-by-step explanation:
 
        
             
        
        
        
1.
Answer A. (x<1)
2. 
Answer A.
3.
Answer A. (x<0)
4.
Answer D. (x>2.5) 
        
             
        
        
        
For math- The difference between a value of a variable and another variable which usually ends up to be the variables mean
        
                    
             
        
        
        
48y + 40x factored is 8(6y+5x)
        
                    
             
        
        
        
Answer:
32−4x=12
Step-by-step explanation:To be honest I dont think I have a good explanation but I do know my answer is acurate.