Which of the following is NOT one of the improvements in the 2010 revision of the Dietary
Guidelines for Americans?
A) increased emphasis on eating more legumes, vegetables, fruits, whole grains, and nuts
B) cutting out red meat, butter, cheese, and sugar
C) replacing red meat with fish and chicken
D) replacing unhealthy fats with healthy fats
B
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A weight loss of 2% or more of body weight by dehydration carries some risk of ________.
A. increased body temperature B. decreased performance C. reduced blood volume D. All of these choices are correct.
An elevated level of blood sodium is called
A) hypocalcemia. B) hypernatremia. C) hyponatremia. D) hypercalcemia.
When supplemented at high doses, the vitamin that may be toxic to nervous tissue is ____
A) thiamin B) riboflavin C) niacin D) vitamin B6
Which statement describes the muscular contractions of the GI tract??
A) ?Peristalsis begins in the stomach upon the initiation of the swallowing reflex. B) ?To withstand the pressure of stool evacuation, the colon must have the thickest and strongest muscles of the GI tract. C) ?The jejunum has a third layer of diagonal muscles to enhance contraction and relaxation phases for optimal digestion. D) ?The periodic contractions of intestinal muscles mix the chyme before allowing the contents to move toward the colon.