The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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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.
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The average office desk has 400 times more bacteria on it than a toilet.
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The horizontal fraction bar was introduced by the Arabs.
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Your heart beats over 36 million times a year.
Allergy skin testing.
Testing the Achilles tendon reflex with client in a supine position
Detecting a deletion in the CFTR gene by ASO testing
Which reaction below represents Th decay by alpha emission?