A dose-response curve shows that noncompetitive antagonists alter both the and the of the agonist, while competitive antagonists alter only the .

answer: A dose-response curve shows that noncompetitive antagonists alter both the 'potency' and the 'efficacy' of the agonist, while competitive antagonists alter only the 'potency'.

answer; (c); to assure that workers have the right to a safe workplace and that it is the employer's responsibility to provide safe and healthy workplace;