If you look at this what do you see the earth and when there is the full moon what do you see. 
        
                    
             
        
        
        
Nutrients enter a cell up the concentration gradient by the process of active transport.
        
                    
             
        
        
        
Answer:
prob cellular respiration 
Explanation
the first part is sugar and oxygen which would result in the second part, carbon dioxide, water, heat, and usable energy. aka reactants to the products
 
        
             
        
        
        
Answer:
circulate blood around the body via the heart, arteries an veins, etc
Explanation:
 
        
                    
             
        
        
        
Answer:
The correct answer is Glycocalyx, ribosome and cell wall.
Explanation:
Glycocalyx is mainly found in bacteria that makes a protective covering outside the cell wall in the form of capsule of bacteria and provide protection to bacteria from host immune cell.  
Bacterial ribosomes are different from human ribosomes. Bacteria contain 70s ribosome while humans contain 80s ribosome so ribosomes are potential targets for many drugs present today.
Bacterial cell contain cell wall which is made up of peptidoglycan or lipopolysaccharide but human cell does not contain a cell wall, therefore, many drugs are designed to destroy cell wall of bacteria like penicillin.
So glycocalyx, ribosomes, and cell wall can be potential targets for Dr. Ehrlich's "magic bullets" due to significant difference or absence from humans.