The answer is C)Resistant bacteria cannot be attacked by penicillin
 
        
             
        
        
        
All of the options are correct because each possesses the ability to specialize into a specific type of cell.
        
                    
             
        
        
        
Answer:
The correct answer will be option-B.
Explanation:
Photosystem of a plant is complex pigment-protein molecules which absorbs the light energy required for the formation of a glucose molecule.
Two types of Photosystem are present in the plants which are: P₆₈₀ and P₇₀₀. The 680 and 700 denote the wavelength of the light energy absorbed by the pigment of the chloroplast. The electrons get excited only at their absorbing wavelength.
Thus, Option-B is the correct answer.