Answer:
Predator prey relationship
Explanation:
I can only think of this at the moment and it is simply between predator and prey. The predator consumes the prey and this relationship has an effect on the food chain/ food web. 
 
        
             
        
        
        
Answer:
a process where green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
Explanation:
hope this helps
 
        
                    
             
        
        
        
Bending over and touching your toes describes flexion in reference to your intervertebral discs.
        
                    
             
        
        
        
Answer:
The black and yellow bird population would begin to starve and would be forced to find alternative food, or die off. This would then send ripples through the food web, causing almost every species to be effected by the grasshoppers being gone. 
 
        
             
        
        
        
D. Lymph nodes are the filtering points throughout the body... found in the lymphatic system