Use the following information to answer the next few questions.
You just bought a freshwater tropical fish for your new aquarium.Once you arrive home,you fill the aquarium with cold,dechlorinated water and plug in the filter and heater.You immediately release the fish from his bag of warm water into the cold water of the aquarium and give him some food.After one hour,you notice the fish has lost its vibrant colouration and isn't swimming very much.After a few hours,you find the fish dead.
-Which of the following physiological process(es)could have lead to the death of the fish?
I.decrease in enzyme-mediated reactions
II.increased rigidity in exchange membranes
III.non-shivering thermogenesis