14. It would indirect and 15. Direct
        
             
        
        
        
Cell walls are rigid which gives plants their shape. Animals have only cell membranes which allows animals to be flexible as animals are moving organisms. Plants, on the other hand, are sturdy and upright and are sessile organisms. Cell walls allow plants to grow upright as high as their maximum height and to be sturdy enough to survive harsh environments.
        
             
        
        
        
Answer:
The fossil theory and the distribution of species
Explanation:
 
        
                    
             
        
        
        
The answer would be "Bacilli-<span>Short". </span>