Sterility, blindness, and destruction of the CNS can be caused by ______________ if left untreated.   

Vegans avoid all food for _____________________ origin.  

_________________ is one of the essential B vitamins needed for the production of necessary DNA synthesis body cells.  

The human body consists of ______ % of water.  

_________________ helps transport iron, oxygen, and nutrients to all body cells.  

Uncle Willie is 87 years old. He has a chronic condition involving changes in nerve fibers of the brain that result in memory loss. We might say Uncle Willie is in the first stages of _________________.  

The common cold, Influenza, and Hepatitis are all types of ____________.  

The __________ carry oxygenated blood away from the heart.  

Denasia is suffering from coronary blockage. Her doctors advise her to have what kind of surgery?  

_______________ are substances capable of triggering an immune response.