6. Explain Why does coating surfaces with oil reduce friction
between the surfaces?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate

The receptor cells that convert light energy into neural signals are called