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Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

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People about to have surgery must tell their health care providers about all supplements they take.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Models of some representative proteins drawn to a common scale Models of some representative proteins drawn to a common scale
Homeless people sleeping on the streets is a common sight in India’s cities. I took this photo in ... Homeless people sleeping on the streets is a common sight in India’s cities. I took this photo in ...
The common rail on a Cummins diesel engine. A high-pressure pump (up to 30,000 PSI) is used to ... The common rail on a Cummins diesel engine. A high-pressure pump (up to 30,000 PSI) is used to ...
Ten Leading Causes of Death in High-Income Countries, 2008 Ten Leading Causes of Death in High-Income Countries, 2008
The two most common deformities of the spinal column are scoliosis and kyphosis. The two most common deformities of the spinal column are scoliosis and kyphosis.
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Video: Enzyme structure - Properties of enzymes

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