The price elasticity of demand measures thea. responsiveness of a good's price to a change in quantity demandedb. adaptability of suppliers when a change in demand alters the price of a goodc. responsiveness of quantity demanded to a change in a good's priced. adaptability of buyers when there is a change in demande.
Striations are a key attribute to identify skeletal and cardiac muscle types. Although striations are usually visible in most sections of these muscle types, it can sometimes take a little adjustment of the microscope lighting to see them clearly.
Smooth muscle fibers (cells) are tapered at each end and have a single, central nucleus. The cells appear smooth under the microscope because they do not contain the visible bands, or striations, that are seen in the other types of muscle cells. Smooth muscle may contract in response to a nerve impulse, hormonal stimulation, stretching, and other stimuli.