D.
Glucose is energy, which means it breaks down when energy is consumed. When a fox consumes it's pray, a seagull glides trough the air and a duck rests on a pond, not much glucose is consumed.
Energy is used when physical effort is necessary, and running from a predator, requires a lot of energy.
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Answer:
I think its the nucliolus
Explanation:
 
        
             
        
        
        
Traits are inherited trough the parents genes that are passed to the offspring trough both parents reproductive cells, that contain genes in their nucleus.
Hope it helped,
Happy homework/ study/ exam!
 
        
                    
             
        
        
        
Oceans, Seas, and bodies of fresh water