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.
Explain why skeletal muscle fibers appear striated. Myofibrils play a fundamental role in muscle contraction. They contain two kinds of protein filamentsâthick ones composed of the protein myosin and thin ones mainly composed of the protein actin. The organization of these filaments produces the characteristic alternating light and dark striations, or bands, of a skeletal muscle fiber.