Which statement concerning feedback inhibition is false? choose one: a. feedback inhibition is difficult to reverse. b. feedback inhibition can work almost instantaneously. c. feedback inhibition regulates the flow through biosynthetic pathways. d. feedback inhibition is a feedback system for controlling enzyme activity. e. in feedback inhibition, an enzyme acting early in a reaction pathway is inhibited by a later product of that pathway.

With signals from no-claim bonuses and deductibles, a. the marginal cost curve for careful drivers lies to the left of the marginal cost curve for aggressive drivers b. auto insurance companies insure more aggressive drivers than careful drivers because aggressive drivers have a greater need for the insurance c. the market for car insurance has a separating equilibrium, and the market is efficient d. most drivers pay higher premiums than if the market had no signals