Research suggests that, with age, regular exercise contributes to which outcome?
A. less loss of muscle fiber
B. increased bone fractures
C. worse performance on mental tests and increase in brain tissue
D. cognitive loss
Answer: A
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The number of overweight children in the United States has leveled off in the past 30 years
Indicate whether the statement is true or false
Identify a true statement about the neurotransmitter dopamine.
A. A deficiency in dopamine levels is related to Alzheimer's disease. B. It is found primarily in the spinal cord. C. It is involved in movement, attention, and learning. D. Reduction in dopamine production enables effective regulation of sleep and pain.
Who is MOST likely to be in the "druggie" crowd?
a. Tony, whose parents emphasize achievement b. Sam, whose parents are neglectful and permissive c. Greg, whose parents include him in joint decision-making d. Tony, Sam, and Greg are equally likely to be in the "druggie" crowd
The hormone __________ is produced in ________, which some scientists speculate may lead to differences in male and female brain structure, and later variations in gender-related behavior(s)
a) serotonin; males b) serotonin; females c) androgen; males d) androgen; females