Search Results for: Fresh stomach of animals
        
	        
		      
	        
		      
	        
              of humans and animals for normal growth, maintenance of life, and normal reproduction. vitamins act as catalysts; very often either the vitamins themselves are coenzymes coenzyme , any one of a group of relatively small organic molecules required for the catalytic function of certain enzymes. a coenzyme
		        
              
                  the skin and mucous membranes. one form, retinal, is a component of visual purple, a photoreceptor pigment in the retina of the eye (see vision vision, physiological sense of sight by which the form, color, size, movements, and distance of objects are perceived. vision in humans the human eye functions...
		      
		        
		      
		        https://encyclopedia2.thefreedictionary.com/vitamin