Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Monosaccharide structure
Maple sugar tapping.
Sugar Gliders (Flying Phalanger)
CAM Plant Sugar Synthesis
Growing Interest in Sugar-Free Foods and Beverages