Answer:
Well, if all the herbivores disappeared, multiple things could occur. Without anyone keeping plants in check, plants may grow too abundant and may be harmful to the food web. Not only that, but predators that eat herbivors might starve without food. On the plus side, natural resources like water would increase without herbivores drinking/using it.
I hope this helps :)
Explanation:
 
        
                    
             
        
        
        
Answer:
<u>The heavier the hummingbird, the fewer times its wing will beat per second. </u>
Explanation:
There is a negative slope in a graph respective to the components of the x and y axis. Therefore, heavier the hummingbird -> less beats per second. 
 
        
             
        
        
        
The rabbit population may decline if the plant life starts to die or there’s an increase in the fox or wolf population.