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Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

World human population growth through history illustrates an exponential growth pattern. World human population growth through history illustrates an exponential growth pattern.
Movement of Water in the World Ocean Movement of Water in the World Ocean
Primates in the New World tend to be small-bodied compared to those elsewhere. Primates in the New World tend to be small-bodied compared to those elsewhere.
World War II Pacific Theater World War II Pacific Theater
New World - Canada New World - Canada
Public Speaking: Strategies for Success, 9th Public Speaking: Strategies for Success, 9th
Video: Membrane Protein and Facilitated Transport (Passive Vs Active)

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