When exposure to a pathogen identical to one that has been encountered previously occurs again, the immune system recognizes the pathogen and acts quickly based upon
A. suppression.
B. specificity.
C. memory.
D. discrimination.
E. mutation.
Answer: C
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A WHtR of .6 indicates a(n) ____ disease risk
a. increased b. very low c. moderate d. high e. extremely high
According to Healthy People, approximately 50 percent of premature morbidity and mortality is related to
A. infectious diseases. B. cancer and heart disease. C. risky health behaviors. D. motor vehicle accidents.
Stressors can be imaginary
Indicate whether the statement is true or false
Which of the following is TRUE when considering how to dress for physical activity?
A. Wear layers of socks to prevent blisters when shoes are too big. B. Replace shoes if the fabric breaks down, even if the heels and soles are still good. C. Wear layers of clothing so that a layer can be removed if not needed. D. Wear tighter clothing when cycling to restrict extraneous movements.