Direction: Read each statement and choose the best answer. Write the
answer on a separat sheet of paper.
1. Which of the following are organs of the respiratory system?
a. nasal cavity, pharynx, larynx, lungs
b. nasal cavity, pharynx, larynx, stomach
c. nasal cavity, trachea, brain, heart, lungs
d. nasal cavity, trachea, veins,intestines, lungs