Answer:
liver arm ,pivot, effort and load
 
        
                    
             
        
        
        
Answer:
i think it's A. why? because bumblebees pollinate flowers making more grow but dragonflies EAT the bees so they'll decrease.
 
        
             
        
        
        
The tissues found within the vein if I must say are xylem and phloem. Glad I can help.
        
             
        
        
        
Answer:
echolocation
it sends waves for them to see around them.
Explanation:
 
        
                    
             
        
        
        
^^ and if the parent has a defect or disease or whatever the offspring are less likely to have it