An example of a survey with negative correlations is:
a. when folic acid intake increases prior to pregnancy, the incidence of neural tube defects declines
b. when LDL levels increase, the rate of heart disease increases
c. when a person becomes more obese, their LDL levels likely rise
d. as the intake of peanut butter and potato chips increases, dental caries increase
Answer: a. when folic acid intake increases prior to pregnancy, the incidence of neural tube defects declines
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Which of the following is BEST protected against replication of foodborne bacteria?
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