Answer: Cellular Respiration and Mass
Explanation: Animals get glucose by breaking down the food they eat, then  during cellular respiration, glucose combines with oxygen to release energy and to form carbon dioxide and water.
 
        
             
        
        
        
Synergistic Interaction 
Hope helps uh :)
        
             
        
        
        
Answer:
Watery, sometimes foul-smelling diarrhea that may alternate with soft, greasy stools.
Fatigue or malaise.
Abdominal cramps and bloating.
Gas or flatulence.
Nausea.
Weight loss.
Explanation:
because the parasite is traveling through the intestine(which is a very important body part in you body)
 
        
                    
             
        
        
        
2 - Human refuse to stop polluting.
All other three are attempting to attack the problem of pollution.