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.
If demand is elastic, it simply means that consumers will buy more of a product when the price comes down. They will buy less when the price goes up. Yes. There are other reasons why consumers increase or decrease consumption, but price is a fundamental driver of demand.