"Diffusion is the movement of molecules from an area of higher concentration to one of lower" is the one among the following choices given in the question that <span>best describes the process of diffusion. The correct option among all the options that are given in the question is the fourth option or the last option.</span>
        
                    
             
        
        
        
Yes that’s circlet make me brainiest
        
                    
             
        
        
        
Hormone supplements and dietary supplements, and relaxation techniques
        
                    
             
        
        
        
Answer:
B. Cartilaginous fish
Explanation:
Sharks have a cartilaginous skeleton. Cartilage is less dense than bone which allows sharks to move quickly through the water without using too much energy.