3 is the correct answer. Let me know if you want me to explain why that is the answer.
        
                    
             
        
        
        
when they hit it at too shallow of an angle it causes them to curve away 
 
        
             
        
        
        
<h3>The inner lining of the tube like systems possesses the ciliated epithelium. The cells bear shorter hair like projections called cilia which beat and allow the movement of the particles. The fallopian tubes are lined with cilia and vibrate to move the egg or the mucus in the cavity</h3>
        
                    
             
        
        
        
Answer:
Explanation:
they can not chose to adapt. adaptations occur over a very long period time(darwinism)  Evolution is not selective in the sense that the organism being changed can choose. 
 
        
             
        
        
        
The basic unit of a chemical element.