The price elasticity of demand measures: a) the slope of a budget curve b) how often th price of a good changes c) the responsiveness of the quantity demanded to changes in price d) how sensitive the quantity demanded is to changes in demand.

When was napoleon banopart born?

Darwin studied two different types of tortoises on the galapagos islands. sort the characteristics based on which tortoise they describe.

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.