Brandon's teeth are stained from his constant coffee drinking, so his dentist recommended that he switch to a new electric toothbrush that not only brushes teeth very rapidly, but also uses sound to reduce plaque and staining. What kind of sound is most likely generated by Brandon's new toothbrush?
a. infrasound
b. ultrasound
c. pure tones
d. noise
b
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One who systematically gathers information in order to describe, predict, and explain abnormality is a clinical
A. practitioner B. legalist C. mentalist D. scientist
Structures in the _____ orientate one towards or away from pleasurable or life-threatening environmental stimuli.
A) hindbrain B) midbrain C) forebrain D) cerebellum
Research on the Aka of Central Africa reveals that a strong father–infant relationship is due in great part to a(n)
A) unusually cooperative and intimate bond between husband and wife. B) lack of respect for women within the tribe. C) lack of respect for men within the tribe. D) strong division of male and female duties in the tribe.
Describe the "restriction of range" problem in twin studies.
What will be an ideal response?