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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
Citrate synthase test
Birth Order and Intelligence
Assisting with a Pelvic Examination and Pap Test
The Mantoux tuberculin skin test. Positive reaction.