I believe it's B. A vibrating tuning fork is struck and begins to vibrate as the object used to strike it is placed away from the tuning fork.
        
             
        
        
        
Answer:
Iris
Explanation:
The iris seems to be the illuminated portion of the eyes which really covers the pupil. It controls the amount of light reaching the eye. The lens is indeed a translucent layer of the retina that serves to concentrate light and objects on the lens.
 
        
             
        
        
        
Answer:
DveC başarılar yardı olduysam sevinirim
 
        
             
        
        
        
The organism may become ill or die