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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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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
![The degree of cerebral cortex folding in different mammalian species. The brains are not shown to sc](https://biology-forums.com/gallery/47/medium_33_29_07_11_7_24_35.jpeg)
![Three principle forms of natural selection: (a) stabilizing selection, (b) directional selection, an](https://biology-forums.com/gallery/47/medium_33_31_08_11_2_12_19_16181010.jpeg)