Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Although large, the cougar is more closely related to smaller felines.
Covalent Bonding Can Form Compounds
Illustration of a large aneurysm in the abdominal aorta that has ruptured.
An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat