Ultra-trace minerals are those that are required in amounts less than ________ mg per day.
A. 1
B. 2
C. 10
D. 20
Answer: A
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The first stage of heat-related illness that occurs because of depletion of blood volume is called
A. heat cramps. B. heat exhaustion. C. heat stroke. D. heat rash.
What is the most likely explanation for the impaired functioning of the GI tract resulting from folate deficiency??
A) ?insufficient bile production, thereby promoting fat malabsorption and diarrhea B) ?reduced mucosal cell replacement, thereby resulting in decreased GI functioning C) ?decreased enzymatic capacity in the intestines, thereby resulting in malabsorption D) ?decreased oxygen supply to body tissues, with the intestines being particularly affected because of their high metabolic activity
The recommended source of fluid for healthy U.S. adults is:
a. plain drinking water, because it is safe and noncaloric b. carbonated beverages, because they have good flavor. c. tea or coffee, because caffeine helps maintain fluid in the body. d. fruit juice, because it has additional nutrients we need. e. soft tap water, because it is fluoridated.
The first line of defense against microorganism invasion is the host's:
a. skin. b. respiratory system. c. white blood cells. d. lymphatic system.