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Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

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There are 20 feet of blood vessels in each square inch of human skin.

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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after
Prevalence of Diabetes in the United States Based on Age and Sex Data from the American Diabetes ... Prevalence of Diabetes in the United States Based on Age and Sex Data from the American Diabetes ...
Flow cytometry data that shows the differences in CD3+ CD4+ cells that occur with HIV infection. ... Flow cytometry data that shows the differences in CD3+ CD4+ cells that occur with HIV infection. ...
How to fit an exponential model to data How to fit an exponential model to data
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Video: Mitosis step-by-step

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