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The passage of food needs to occur in a controlled way,so the body contains rings of muscle in the digestive tract that regulate the movement of food.These are
Q34: A disease-causing agent that does not usually
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Q45: Physical and chemical barriers that form the
Q51: The nerve that conducts impulses to the
Q54: The intake of alcohol,cigarette smoke,and insufficient amounts
Q57: Over the last half-a-decade,the number of banks
Q62: A phenomenon in which sensations become less
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Q69: Included among leading structural trends in the
Q90: What is a bank holding company?<br>A)It is