Goiter is caused primarily by a deficiency of?
a. iron.
b. zinc.
c. iodine.
d. selenium.
e. manganese.
Answer: c. iodine.
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What is the term for an imitation treatment that has no known physical effect or therapeutic
value on the subjects in a research study? A) placebo B) double-blind trial C) theory D) single-blind trial
The amino acids that contain sulfur are:
a. phenylalanine and lysine. b. threonine and tyrosine. c. methionine and cysteine. d. leucine and tryptophan.
Which of the following food sources provides the highest amount of zinc?
Legume Whole-grain bread Shellfish Spinach Orange Shellfish
Crystal wants to help her preschool daughter, Violet, to eat more vegetables. Which of the following strategies could she try?
A. Crystal should show Violet that she likes vegetables. B. Crystal should avoid overcooking vegetables. C. Crystal should offer Violet new vegetables along with familiar foods. D. All of these are strategies to encourage preschoolers to eat vegetables.