When preparing cauliflower, onions, white potatoes, and turnips, their color may be further whitened by
A. cooking the vegetable in alkaline water.
B. adding cream of tartar to the cooking water.
C. heating in the presence of copper or iron cooking utensils.
D. None of these are correct.
Answer: B
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Which of the following observations is an example of a negative correlation?
A. When a group of older adults increases their intake of high-fiber foods, the percentage of people in the group who develop intestinal cancer decreases. B. When a group of adults increases their intake of fruits and vegetables, the percentage of people in the group who have high blood levels of vitamin C levels increases. C. When a group of children eat more sugary foods, the percentage of children in the group who develop two or more decayed teeth increases. D. When a group of people decreases their physical activity levels, the percentage of people in the group with healthy levels of body fat decreases.
What is the "thrifty phenotype" paradigm?
a. The fewer polymorphisms present in a chromosome, the less likely a particular gene expression will occur. b. The genomic imprinting for the number of times mitosis can occur in various tissue types. c. The gene expression of an individual based on lifestyle factors (i.e., diet, activity). d. The fetal adaptation to nutritional deprivation which increases the likelihood of adult chronic disease.
Maternal anemia occurs when a pregnant woman has a hematocrit ________.
A. below 45% B. below 33% C. below 50% D. below 60%
Discuss the reasons why American society today spends large sums of money annually on nutritional supplements and dietary plans that have little or no basis in scientific fact