Which of the following is not an example of natural resistance?
a. epithelial cells
b. mucus secretion
c. presence of immunoglobulins
d. tears
c
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Which if the following is NOT a proposed mechanism by which antioxidants help prevent
cancer? A) enhancing the immune system B) preventing damage to DNA through oxidation C) allowing aging and apoptosis of cancer cells D) serving as prooxidants against cancer cells
Heredity and environmental factors both contribute to obesity, thus in some instances an individual is not capable of achieving and maintaining a desirable body weight.
Answer the following statement true (T) or false (F)
A provitamin is:
a. a nutrient that can be converted into a vitamin b. a vitamin that can be converted into a nutrient c. the endogenous from of a vitamin d. a man-made copy of a vitamin
Cultural values _____
a. are genetically determined b. provide a set of rules by which to govern life c. vary greatly within a culture d. change frequently