When acute stress bombards your brain with stress chemicals,

A) you are more likely to be able to concentrate in class.
B) your ability to make sound decisions is enhanced.
C) you are likely to experience euphoria.
D) your memory may be impaired.


Answer: D

Health & Biomechanics

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For each of the descriptions of a biologic function in questions 11-14, select the T cell-derived cytokine (A-E) that matches it

A. Interferon-? B. Interleukin (IL)-4 C. IL-5 D. Transforming growth factor-? E. Lymphotoxin Stimulates growth and activation of eosinophils

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Recent studies indicate that sperm counts worldwide have dropped dramatically. One reason for this decrease might be

A. an increase in toxic substances in the environment. B. changes in clothing styles. C. more men waiting until their thirties to have children. D. a decrease in the use of chemicals that mimic hormones.

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Drugs known to be highly addictive include cocaine, heroin, and

A) steroids. B) LSD. C) marijuana. D) nicotine.

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Which strategy is LEAST helpful in promoting a behavior change for better health?

A. Target multiple behaviors simultaneously. B. Incorporate rewards for reaching goals. C. Identify cues to behaviors. D. Make slow, systematic changes in behavior.

Health & Biomechanics