Vigorous use of fast-twitch fibers results in fatigue because the process is ____.
A. aerobic
B. anaerobic
C. anabolic
D. abolic
Answer: B
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Tests that measure what they are designed to measure:
a. are reliable b. have been standardized c. are valid d. are consistent
Dr. Hugh is conducting research into the genetics of bipolar disorder. So far, he has found that many of the genes that might cause it also seem to be responsible for
A. attention deficit hyperactivity disorder (ADHD). B. schizophrenia. C. obsessive compulsive disorder. D. ASPD.
In which substage of sensorimotor development would you first witness goal-directed behavior?
a. simple reflexes c. primary circular reactions b. secondary circular reactions d. tertiary circular reactions
The human retina contains about __________ rods and about __________ cones.
A. 9 million; 120 million B. 32 million; 320 million C. 60 million; 3 million D. 92 million; 4 million