How long can a person stand upright?

How soon do you get symptoms after contracting syphilis? What are some examples of nitrogenous wastes that are removed by the kidneys? What 2 organs are associated with the lymphatic system? Is it safe to put normal water or drinking water trough urethra into the bladder? Do chimps and humans have almost the same hemoglobin? What does it mean if your nipples are on hard all the time? Why is it essential that both anterior and posterior muscles of the shoulder joint be properly developed? What could be wrong and what treatment is needed if a woman experiences painful urination with blood in the urine? Where and how food poisoning reproduces in the human body? What part of the eye is shutter release? Can you still get your period if you were a tampon before you have it? What are the pumping chambers of he heart? Does rabies have a fatility rate? Is swine flu in glenthorne high school? What caused P0303? What would cause a false 005 pbt result? Is drinking and driving a summary or indictable offense? How could damage to the nervous system affect another body system? Which US president was president because the president died after getting cholera? What is dacryrrhea?