The slow rate at which diffusion occurs over large distances.
        
             
        
        
        
The definition of Xylem is “the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps form the woody element in the root system. Therefore the answer is “transport water and minerals upward.” I hope this helps!
        
                    
             
        
        
        
Depend if you are more creative or more a solver(good in math).
        
             
        
        
        
The term is known as TROPHIC LEVEL...........
        
             
        
        
        
Answer:
A gas-powered lawn mower is a complex machine because for it to function it does more than one motion. For example, it has a wheel and axle system so it can move when powered. And it has a system of simple machines and other parts that are put together to accomplish the task of cutting grass.
Explanation: