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Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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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.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Peripheral Pulse Sites Peripheral Pulse Sites
Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how
Trichromatic Theory of Color Vision Trichromatic Theory of Color Vision
Patient having glaucoma test. Patient having glaucoma test.
Selected Drugs for Glaucoma Selected Drugs for Glaucoma
Testing distant vision Testing distant vision
Video: Simple Diffusion - gases and nonpolar compounds transport

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