Answer:
threaten the food webs of their invaded habitat and effect the ecosystem.
 
        
                    
             
        
        
        
Answer:
B. the genetic diversity of the crops will decrease 
Explanation:
without the influence of the insects, the crops will have no reason to change
 
        
             
        
        
        
Answer:
B
Explanation:
A tiger strength and speed is not an example of selective breeding.
 
        
             
        
        
        
Producer is the first level of a food pyramid. Grass is a producer