Peroxidase is an enzyme that breaks down hydrogen peroxide in cells. it accomplishes this because of its structure. what part of the enzyme is involved in catalytic activity

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.