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Author Question: By the end of grade 2, the average student knows approximately ________ root words, though the range ... (Read 60 times) |
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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.
Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.