Answer:
D) Expressed in the stomach, but not in the cells of the small intestine
Explanation:
 
        
             
        
        
        
B
Area B of the graph shows the activation energy required if an enzyme was not present
Explanation:
Reactions with high activation energy cannot occur spontaneously. Enzymes are responsible for lowering this activation energy and enabling reactions to occur at a faster pace than natural. An example is carbonic anhydrase enzyme that enables increased rates of carbon dioxide dissolving in and out of blood plasma. 
Enzymes distort the bond of reactants such that they become unstable ( this raises the reactants Gibbs free energy). The bonds therefore break and rearrange to form the products of lower and stable energy states. 
Learn More:
For more on activation energy check out;
brainly.com/question/10507976
brainly.com/question/5280701
#LearnWithBrainly
 
        
             
        
        
        
Yes it can !!!!!!!!!!!!!!! just did that got it right
        
             
        
        
        
Answer:
If it helps, the answer is Mutualism (let me know if it is for some reason incorrect)