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Author Question: Dark Matter is matter that A) cannot be seen, felt, or measured. B) cannot be seen or felt, but ... (Read 17 times) |
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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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.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.