The action of biting, chewing, and breaking up ingested food into smaller particles is called:
a. peristalsis.
b. segmentation.
c. metabolism.
d. mastication.
D
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Only large fish contain methylmercury
Indicate whether the statement is true or false
Which of the following describes how iron deficiency affects children’s behavior?
a. It affects brain function long before blood effects appear. b. Testing is a tedious, cost-prohibitive process for many families. c. It is the primary factor in tension-fatigue syndrome. d. Mild deficiency enhances mental performance by lowering physical activity level, thereby leading to increased attention span. e. Children who had iron deficiency as infants recover completely when iron levels are normalized.
Among the alternative sweeteners available in the United States, which has a structure that integrates chlorine atoms?
a. Tagatose b. Sucralose c. Aspartame d. Acesulfame-K
The parasympathetic system innervates the GI system and sends impulses via the _____
a. hypoglossal nerve b. trigeminal nerve c. vagus nerve d. oculomotor nerve