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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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The average office desk has 400 times more bacteria on it than a toilet.

Hokusai, The Great Wave off Kanagawa, from the series Thirty-Six Views of Mount Fuji. Hokusai, The Great Wave off Kanagawa, from the series Thirty-Six Views of Mount Fuji.
Eleanor Antin, My Kingdom Is the Right Size, from the series The King of Solana Beach. Eleanor Antin, My Kingdom Is the Right Size, from the series The King of Solana Beach.
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Taylor's Series Taylor's Series
A reverse-biased silicon diode is connected in series with a 12 V source and a resistor.The ... A reverse-biased silicon diode is connected in series with a 12 V source and a resistor.The ...
Three series of overlapping deletions in the A cistron of the rII locus Three series of overlapping deletions in the A cistron of the rII locus
Video: Primate Evolutionary Tree Animation

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