Answer it’s the left ventricle 
The papillary muscle is in the left ventricle if the arrow is looking for more specific 
Reason
See attached picture
 
        
        
        
Answer:
The best answer is R group. An R - group is a chemical group or side chain that is found attached to the central carbon in amino acids
Explanation:
 
        
                    
             
        
        
        
Answer:
Sort of, true. 
Explanation:
Cloning is when you take the DNA of a somatic cell of the animal you are trying to clone and add it to an embryo. It will then develop into a baby with the same DNA as the other animal. 
(but in my opinion, you're just giving the test animal a sibling.)