In which year was saccharin discovered as a sweetener?
A. 1879
B. 1789
C. 1999
D. 2000
Answer: A
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What oil is said to contain the highest ester content of any essential oil, approximately 85%.
A. Chamaemelum nobile B. Melaleuca leucadendron var. cajuputi C. Cedrus atlantica. D. Cinnamomum zeylanicum
Which statement is true?
a. When the immune cells direct the immune response themselves, this is known as humoral immunity. b. Antibodies are produced by T cells in response to antigens. c. B cells are participants in cell-mediated immunity. d. A hypersensitivity is an immune reaction that can lead to discomfort or illness.
In comparison with the iron needs of younger women, those of older women
a. decrease because of slower turnover of red blood cells b. decrease because of menopause c. increase because iron absorption becomes less efficient d. increase because oxygen use is less efficient
Characteristics of cancer-promoting diets include all of the following EXCEPT: