Which of the following is often contracted meats and meat products stored at between 120°F and 130°F, has onset in 8 to 16 hours, is accompanied by abdominal pain, diarrhea, and nausea, and lasts 1 to 2 days?
a. Clostridium perfringens
b. Toxoplasma
c. Norovirus
d. Salmonella
a
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Which of the following food items is/are not a colloidal dispersion?
A. salad dressings B. jam, gelatin, cheese, and butter C. whipped egg white and whipped cream foams D. marshmallows E. All of these are colloidal dispersions.
Which of the following botanical products is considered safe to consume in moderation during pregnancy?
A) yerba mate tea B) St. John's wort infusion C) licorice root supplements D) peppermint tea
What does research in exercise-induced leanness suggest about extending the life span?
A) Maintaining overall energy balance helps prolong life span. B) Exercise-induced leanness increases the risks for osteoporosis and fractures, reducing life span. C) People genetically predisposed toward a lean body type live longer. D) Calorie restriction is the most important element in prolonging life span.
Microorganisms are termed "pathogenic" when they
A) mutate into other forms. B) are capable of causing disease. C) have multiplied rapidly. D) have died.