Muscle fibers contract when Z lines move _________ and the sarcomeres _________
a. farther apart; stretch
b. farther apart; shorten
c. closer together; stretch
d. closer together; shorten
d
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Yao is participating in a study that is investigating sleep patterns. As part of the study, researchers paste electrodes to Yao’s scalp. The electrodes are then hooked up to an electroencephalograph (EEG), which will provide information about the ____.?
a. ?specific areas of the brain involved with sleep b. ?general electrical activity of the brain during sleep c. ?changes in blood flow that occur within the brain during sleep d. ?physical shape of the brain structures involved with sleep
The parietal lobes are found rostral to the occipital lobes and posterior to the frontal lobes
a. True b. False Indicate whether the statement is true or false
In a classic demonstration, Albert Bandura used observational learning to ______
a. help people with mental retardation learn job skills b. help people overcome snake phobias c. help alcoholics reduce or eliminate their drinking d. help people with mental retardation learn living skills
School fitness surveys reveal that children in the United States have shown little or no improvement in the amount of exercise they get, despite national efforts to increase the level of fitness of school-age children
From the ages of 6 to 18, boys decrease their physical activity by ____________ and girls by 36%. a. 10% c. 20% b. 14% d. 24%