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Did you know?
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
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.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
![This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev](https://biology-forums.com/gallery/47/medium_374628_16_08_15_9_52_08_22257994.jpeg)
![This photograph of a Union soldier just freed from Andersonville prison, stunned and enraged norther](https://biology-forums.com/gallery/47/medium_376063_22_08_15_11_28_16_22363695.jpeg)