A voice changes from high to low pitch in speaking by


Select one:
a. changing the volume of air that flows across the vocal cords.
b. controlling the growth of the tissue.
c. increasing the amplitude of the vocal cord vibrations.
d. changing the tension on the vocal cords.
e. changing the tension on the epiglottis.


d. changing the tension on the vocal cords.

Biology & Microbiology

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