Why are enzymes fragile?

Where is the gorilla in the food chain of the rainforest? What does the lost mass repesent? Hans oersted's discovery of magnetic affect of an electric current can be considered an event of? Are indicators changing colour a chemical change? What is the function of main switch? What are the characteristic of encoder? Is non-dairy creamer flammable? What are the different grades of gravel? What is Ernest Haeckel's three-kingdom system? Why is class an uncountable noun? What plant life is found in mount rainier? Why growth of a child is irreversible? What is the speed of sound at sea level on a standard day? What landmass collided with Laurentia and caused the Acadian Orogeny? Would it be possible for two pure substances to have exactly the same set of properties? What holds true for a chemical change? What cycle has water as an end product? Does the depth of the focus of an earthquakes change as you go further inland from the coast of South America? What cloth is used to rub down metal? What to check first on a whirlpool duet gas dryer that wont heat up?