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Author Question: In a(n) ________ system, an empty bin signals a need to fill it. (Read 25 times) |
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.