It is known as a concentration gradient which in diffusion will always flow from ares of high concentration to areas of low concentrations 
So i believe the answer to this is A. 
        
                    
             
        
        
        
The predator is the one putting the other in danger and the prey is the one IN danger
        
             
        
        
        
Glucose is the most common monosaccharide. Monosaccharide, or simple sugar is the most basic unit of carbohydrates. 
        
             
        
        
        
Poverty, chronic stress and susceptibility in children result in SIGNINFICANT HARDSHIP, POOR ACADEMIC PERFORMANCE AND CADRDIOVASCULAR DISEASES.
Poverty, chronic stress and diseases usually lead to psychological disorder in children. Most of the time, these disorders are neglected because children do not exhibit symptoms like that are exactly like those of adults going through similar conditions. Psychological disorders in children ultimately result in poor academic performance and other adverse effects.<span />
        
             
        
        
        
Answer:
True
Explanation:
Vocal cords are bands of smooth muscle tissue located in the larynx. When air passes through, the vocal cords vibrate.