How small is a milliter?

What does PMS symptoms feel like? What open sore in the lining of the stomach that may be caused by smoking? Why can you hear better by putting your ear against a door? What are types of skin infection? What is a candlelight ceremony? Would you call the cerebrum the visceral command center of the brain? What is the complement system? What to do if a feeding tube gets clogged? What causes alkaline in the urine? Is fibrillation dangerous? What makes blood types different from each other? Which Band of connective tissue that surrounds muscles? What could cause a cat to bleed from the rectum? What exercises can prevent carpal tunnel syndrome? What time of the year do baby painted turtles hatch? How long do you study for? What is the survival rate for Myelodysplastic syndrome? What systems would stop working if the Pancreas shut down? Why are reflux and distillation setups open to atmosphere? Where can I find more information about a pre-diabetic diet?