Is a Calculator a Closed system or open system?

What is the causes of low spam count? What is the name of the disease where people lie? I have found a lump on my left testicle but it's on the top i have done some research and there are a number of things it could be I do not really want to see my doctor because it will be embrassing? How long does atria relax? You went to the doctor and they told you that the baby didn't show but the hcg was there are you pregnant or What is going on? Does there need to be a lot of blood to get HIV? Why would one need a health risk assessment? Can you eat discharge? Blood vessels that carry blood to the heart are called? Who do I go to if my doc can't diagnose which autoimmune disease I have? What causes involuntary whistling? Who is typically the reservoir host for mononucleosis? You get headaches every day is this something serious? What does Causative agent do to cause the infection of a whooping cough? Can you see period pads through leggings? Why is texting so addictive? What is the name of the muscle folds of the ventricles? What is a ruptured man? What Causes High Triglyceride Levels? Can burping and gurgling in your stomach be a sign of pms?