<span>from low concentration to high concentration</span>
        
                    
             
        
        
        
An exothermic reaction<span> is a chemical </span>reaction<span> that releases energy by light or heat. It is the opposite of an </span>endothermic reaction<span>. Expressed in a chemical equation: reactants → products + energy.</span>
        
                    
             
        
        
        
oxygen flow is low and his lungs do not have a lot of capacity
 
        
                    
             
        
        
        
A hypothesis Is when someone thinks of the answer and a theory is when a group of people think of an answer
        
             
        
        
        
<span> Very inefficient. Almost 90% of all energy is lost between trophic levels. That is why larger animals need to eat more, because less energy is being consumed. 
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