Foods most likely consumed by hunter-gatherers are:
2
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What do acidic substances "donate" in chemical reactions?
A. oxygen atoms B. hydrogen ions C. protons D. carbon atoms E. chloride ions
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.
The bacteria that usually inhabit the large intestine are prevented from backing up into the ileum by the action of the ________.
A. rectal sphincter B. pyloric sphincter C. sphincter of Oddi D. ileocecal sphincter
Dorothy is an 85-year-old woman who is having difficulty swallowing. Food seems to enter her stomach too slowly. Based on this information, Dorothy probably has a(an)
A. blockage caused by undigested fiber deposits in her jejunum. B. overgrowth of probiotics in her stomach. C. condition characterized by loss of peristaltic functioning. D. excessive amount of secretory activity within her digestive tract.