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Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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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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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

The shoot apical meristem and stem cells. The shoot apical meristem and stem cells.
red blood cells red blood cells
White Blood Cells White Blood Cells
Fighter Cells Fighter Cells
The hormone leptin is produced in fat cells, moves through the blood, and binds to receptors in the The hormone leptin is produced in fat cells, moves through the blood, and binds to receptors in the
Staphylococcus aureus cells (yellow) stuck in mucus secreted by human nasal epithelial cells. Staphylococcus aureus cells (yellow) stuck in mucus secreted by human nasal epithelial cells.
Video: Power Supply Polyacrylamide Gel Protein Sample

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