In what way are caffeine and nicotine the same?
A) They both decrease heart rate.
B) They both increase alertness.
C) They both are absorbed through the respiratory tract.
D) They are both hallucinogens.

Question

Quizplus · Accepted Answer

Caffeine and nicotine both stimulate the central nervous system and increase alertness. They are also both addictive substances. None of the other options are true - caffeine actually increases heart rate, both substances are generally absorbed through the digestive tract, and they are not hallucinogens.

In What Way Are Caffeine and Nicotine the Same