D. Are made of cells and DNA 
DNA is genetic material in living organisms that is transferred from the parents. Cells and this DNA gives organisms personalized traits. Hope this helped !!
        
             
        
        
        
The answer is C because the chart shows that it produces more or less.
        
             
        
        
        
Answer: Brainstem
Explanation:
The brain stem controls the flow of messages between the brain and rest of the body. There is no requirement of conscious mind for the basic functions of the body.
These functions are breathing, swallowing, heat rate, blood pressure. It takes place even when the person is sleepy, there is need to be awake.
These are the basic functions of the body which is required for the survival of organism.
 
        
             
        
        
        
It lets out oxygen after photosynthesis.
        
                    
             
        
        
        
I believe the answer would be the inheritance of units or factors from both parents.