Occurs when two drugs act together, each increasing the effects of the other. a. additive action b. synergism c. antagonism d. potentiation

Which of these is a feature of audible pedestrian crosswalk signals? o a. pedestrian tracking o b. emergency instructions o c. button location signaling od. responses to voice commands

Trending data is needed when evaluating fitness levels in order to a. compare against others b. chart overall progress c. correct inaccurate data d. keep a person motivated

Which are fat-soluble vitamins? a. abcd b. abek c. abdk d. acdk e. adek