Tremor at rest, muscular rigidity, slowness of movement, and a masklike face are symptoms of
A) Down syndrome.
B) Parkinson's disease.
C) epilepsy.
D) Huntington's disease.
E) multiple sclerosis.
Answer: B
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Which developmental principle proposes that different body systems grow at different rates?
A. principle of the independence of systems B. cephalocaudal principle C. principle of hierarchical integration D. proximodistal principle
Which dyssomnia is least common in children?
a. protodyssomnia b. hypersomnia c. breathing-related sleep disorder d. narcolepsy
The center of the retina, or fovea, where vision is sharpest, contains only ________, which let us see in color
a. pupils b. corneas c. rods d. cones
Lila doesn't like her psychology class because the instructor uses unannounced "pop" exams to test the class. As a result, she never knows when she will be tested. Her instructor is testing her on a ______ schedule
a. fixed-ratio c. variable-ratio b. fixed-interval d. variable-interval