It is milk because milk has lactose
        
             
        
        
        
Answer:
Answer is C
Explanation:
The most similar is hippo and gray whale because they only differ 5 amino acid. The most different is gray whale and elephant  because it is 30 amino acid different.
 
        
             
        
        
        
Answer:
2) It gets buried under layers of soil and rock for long periods of time. I know I was 6 days late, I apologize. 
Explanation:
I took the K12 Test and got it right. Hope this helps!
 
        
             
        
        
        
Answer:
HIV weakens a person's immune system, making it more and more difficult to fight disease. This effect is called AIDS (Acquired Immune Deficiency Syndrome).