The opposite can be true; i.e., people with large muscle mass sometimes have elevated CK levels in the absence of any pathology. This particular enzyme falls into a category where an individual's own normal is more relevant than the normal range given for a population.
1 If the demand increases, and the supply remains the same, there will be a shortage. 2  This will mean the price will increase. 3  If the demand decreases, and the supply remains the same, there will be a surplus. 4  This will mean the price will go down.
Assuming only price changes, then at lower prices, a consumer is willing and able to buy more apples. As the price rises (again holding all else constant), the quantity of apples demanded decreases. The Law of Demand captures this relationship between price and the quantity demanded of a product.