How many stereoisomers of cholesterol found in nature?

Is impetigo multidrug resistant? What is meant by addiction is multifactorial? What type of muscle cells are arranged in sheets or layers with adjacent muscle cells electrically connected by gap junctions and mechanically connected by dense bodies? What is a layer of the heart largely composed of cardiac muscle tissue? Can you bleed if you force to urinate? Why Paul in the bible circumsized Timothy after he preached against circumcision? What are the three hamstring muscles in the hamstring called? How can someone have a hard time breathing when you are not getting any exercise at the moment and not have asthma? What treatments did priests use for the black death? Can you vomit from braces? What are the five performance steps to conducting a counseling session? Toilet paper rash? Can dehydration cause acidosis? When stepping on a rusted nail how does that effect your body? What is the precision of a number? What year was the first documented case of AIDS? What is the first and best way to prevent the spread of diseases? The synapse is a connection between what? What is the order of the months in a year? Is it all right to use dark and lovely hair relaxer to relax my hair if I am pregnant?