Answer:
In biology it is used as a restriction enzyme. EcoRI creates 4 nucleotide sticky ends with 5' end overhangs of AATT. The nucleic acid recognition sequence where the enzyme cuts is G/AATTC, which has a palindromic, complementary sequence of CTTAA/G.
Explanation:
Hopefully that helps, I had previously learned about this stuff too, super tough stuff! 
 
        
                    
             
        
        
        
It is B , I know this thanks to the fact I took PE and our teacher teach us about the body !
        
             
        
        
        
Answer:
C.
Explanation:
He ran at noon on the beach seems to be the best answer.
 
        
                    
             
        
        
        
Answer:
I think its A 
Explanation:
Sound dental sterilization practices in dentistry protect patients, dentists and the whole team. They prevent the growth of bacteria on instruments and surfaces throughout the dental practice. Microorganisms in blood and saliva can carry bacteria and diseases like hepatitis, herpes, tuberculosis, staph and strep.