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''Movement''
 
''Movement''
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Continuous [http://en.wikipedia.org/wiki/Peristalsis| peristalsis] discourages persistence of toxins and aids in their elimination from the gut.   
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Continuous peristalsis discourages persistence of toxins and aids in their elimination from the gut.   
    
''Cell-mediated and humoural defenses''
 
''Cell-mediated and humoural defenses''
Author, Donkey, Bureaucrats, Administrators
53,803

edits