Among adult humans, those who sleep ____ or more hours per night have the highest percentage of REM sleep.
A. 9
B. 5
C. 8
D. 10
Answer: A
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In a visual cliff apparatus, what appears under the glass to provide visual information about depth to a child?
a. a series of diagonal lines (similar to lightning bolts) b. a picture of the faces of the parents c. a checkerboard pattern d. a series of stuffed animals
When Jason is watching the Thanksgiving Parade, he perceives more distant objects as farther away because the lenses in his eyes change shape to focus on those objects. This cue for depth perception is called ____.?
a. ?ocular accommodation b. ?retinal disparity c. ?eye convergence d. ?motion parallax
Myelin is made up of fats and proteins and wraps around axons to ______.
a. store information b. increase the speed of information transmission c. protect the nerve d. provide support and stability for the nerve
What kinds of problems are usually the easiest to solve?
A. problems with unclear goals and constraints B. problems that require expertise C. problems with clearly defined goals and constraints D. problems that require the use of heuristics