The pitch of a sound is determined by the vibration ________.
A. amplitude of both vocal folds and vestibular folds
B. frequency of both vocal folds and vestibular folds
C. frequency of vocal folds
D. amplitude of vocal folds
Answer: C
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Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of ________
A) capillaries B) arterioles C) veins D) arteries
Helen is a 62-year-old smoker. Her physician has diagnosed her as having emphysema that has caused her to hypoventilate. Surprisingly, when her blood pH is checked, it is 7.40. Why?
What will be an ideal response
The epithelial layer that is involved in the specialized process of hair production is the ________.
What will be an ideal response?
Which of the following statements describes the function of basophils in the second line of defense?
A. Attack worm parasites. B. Become macrophages to phagocytize bacteria. C. Fight bacteria. D. Release histamine to promote inflammation.