The primary function of the ossicles is to
a. transfer sound energy from the air of the middle ear to the fluid of the inner ear.
b. transfer sound energy from the fluid of the middle ear to the air of the inner ear.
c. funnel sound.
d. prevent damage from loud noises.
Question 2
Obesity is probably caused by
a. one gene that results in your body not using nutrients properly.
b. eating the same amount that thin people eat.
c. a number of complex, interacting factors.
d. the same factors in humans as in other mammals.